The Big Bang Theory: The Complete Second Season

Audio format Features Cast

Country of Origin:  United States Production year: 2008 Directors: Mark Cendrowski, Peter Chakos Rating: NR(Television) UPC [Locale]: 883929-072552 Running time: 8:02 (482 Min.) Casetype: Keep Case, Slip Cover Format: Color, 1.78:1 Anamorphic Widescreen DVD-Format: Single-Sided, Double-Layered Released: September 15, 2009 Collection type: Owned (#748) Status: Available Purchase date: July 07, 2010 Purchase price: Hidden Review (movie): Review (video): Overview The science of funny is back! At work, physicists Leonard and Sheldon and their geek pals conquer the cosmos. At home, real life – from dating to driving – conquers them. This season, Leonard gets a girl. So does Sheldon. (Sheldon?!) Howard drives the Mars Rover into a ditch. Raj woos a terminator. Gorgeous girl-next-door Penny falls under the spell of Age of Conan. And super-smart, überconfident Leslie Winkler reduces mere men to spineless jellyfish. Twenty-three laugh-filled episodes from series creators Chuck Lorre (Two and a Half Men) and Bill Prady (Gilmore Girls) and a talented cast with astronomical comedy I.Q.s show why Big Bang is such a big hit. Episodes: 1. The Bad Fish Paradigm 2. The Codpiece Topology 3. The Barbarian Sublimation 4. The Griffin Equivalency 5. The Euclid Alternative 6. The Cooper-Nowitzki Theorem 7. The Panty Piñata Polarization 8. The Lizard-Spock Expansion 9. The White Asparagus Triangulation 10. The Vartabedian Conundrum 11. The Bath Item Gift Hypothesis 12. The Killer Robot Instability 13. The Friendship Algorithm 14. The Financial Permeability 15. The Maternal Capacitance 16. The Cushion Saturation 17. The Terminator Decoupling 18. The Work Song Nanocluster 19. The Dead Hooker Juxtaposition 20. The Hofstadter Isotope 21. The Vegas Renormalization 22. The Classified Materials Turbulence 23. The Monopolar Expedition	DVD Covers
	Misc.  • Profile Contributors  • Invelos Profile Links  • US IMDb  • Wikipedia
Genres Television Comedy Studios Production Studios:  • Warner Bros. Television  • Chuck Lorre Productions Media Companies:  • Warner Home Video
Audio format English   Dolby Digital 2-Channel Stereo Portuguese   Dolby Digital 2-Channel Stereo Subtitles Chinese English French Portuguese Spanish Thai
Discs # Description A B DS DL A DL B 1 Episodes 1-6 2 Episodes 7-12 3 Episodes 12-18 4 Episodes 19-23
Features Featurettes, Interviews, Outtakes/Bloopers
Crew  1. The Bad Fish Paradigm Direction Mark Cendrowski .... Director Writing Chuck Lorre .... Created By Bill Prady .... Created By Dave Goetsch .... Screenwriter Steven Molaro .... Screenwriter Bill Prady .... Story By Production Bill Prady .... Executive Producer Lee Aronsohn .... Executive Producer Steven Molaro .... Producer Faye Oshima Belyeu .... Producer Chuck Lorre .... Executive Producer Peter Chakos .... Producer Cinematography Steven V. Silver .... Director of Photography Film Editing Peter Chakos .... Film Editor Music Barenaked Ladies .... Theme By Sound Bruce Peters .... Production Sound Mixer Charlie McDaniel .... Sound Re-Recording Mixer Bob La Masney .... Sound Re-Recording Mixer Art John Shaffner .... Production Designer Mary T. Quigley .... Costume Designer Peggy Nichols .... Make-up Artist  2. The Codpiece Topology Direction Mark Cendrowski .... Director Writing Chuck Lorre .... Created By Bill Prady .... Created By Bill Prady .... Screenwriter Lee Aronsohn .... Screenwriter Chuck Lorre .... Story By Production Bill Prady .... Executive Producer Lee Aronsohn .... Executive Producer Steven Molaro .... Producer Faye Oshima Belyeu .... Producer Chuck Lorre .... Executive Producer Peter Chakos .... Producer Cinematography Steven V. Silver .... Director of Photography Film Editing Peter Chakos .... Film Editor Music Barenaked Ladies .... Theme By Sound Bruce Peters .... Production Sound Mixer Charlie McDaniel .... Sound Re-Recording Mixer Bob La Masney .... Sound Re-Recording Mixer Art John Shaffner .... Production Designer Mary T. Quigley .... Costume Designer Peggy Nichols .... Make-up Artist  3. The Barbarian Sublimination Direction Mark Cendrowski .... Director Writing Chuck Lorre .... Created By Bill Prady .... Created By Steven Molaro .... Screenwriter Eric Kaplan .... Screenwriter Nicole Lorre .... Story By Production Bill Prady .... Executive Producer Lee Aronsohn .... Executive Producer Steven Molaro .... Producer Faye Oshima Belyeu .... Producer Chuck Lorre .... Executive Producer Peter Chakos .... Producer Cinematography Steven V. Silver .... Director of Photography Film Editing Peter Chakos .... Film Editor Music Barenaked Ladies .... Theme By Sound Bruce Peters .... Production Sound Mixer Charlie McDaniel .... Sound Re-Recording Mixer Bob La Masney .... Sound Re-Recording Mixer Art John Shaffner .... Production Designer Mary T. Quigley .... Costume Designer Peggy Nichols .... Make-up Artist  4. The Griffin Equivalency Direction Mark Cendrowski .... Director Writing Chuck Lorre .... Created By Bill Prady .... Created By Stephen Engel .... Screenwriter Tim Doyle .... Screenwriter Bill Prady .... Story By Chuck Lorre .... Story By Production Bill Prady .... Executive Producer Lee Aronsohn .... Executive Producer Steven Molaro .... Producer Faye Oshima Belyeu .... Producer Chuck Lorre .... Executive Producer Peter Chakos .... Producer Cinematography Steven V. Silver .... Director of Photography Film Editing Peter Chakos .... Film Editor Music Barenaked Ladies .... Theme By Sound Bruce Peters .... Production Sound Mixer Charlie McDaniel .... Sound Re-Recording Mixer Bob La Masney .... Sound Re-Recording Mixer Art John Shaffner .... Production Designer Mary T. Quigley .... Costume Designer Peggy Nichols .... Make-up Artist  5. The Euclid Alternative Direction Mark Cendrowski .... Director Writing Chuck Lorre .... Created By Bill Prady .... Created By Lee Aronsohn .... Screenwriter Dave Goetsch .... Screenwriter Bill Prady .... Story By Steven Molaro .... Story By Production Bill Prady .... Executive Producer Lee Aronsohn .... Executive Producer Steven Molaro .... Producer Faye Oshima Belyeu .... Producer Chuck Lorre .... Executive Producer Peter Chakos .... Producer Cinematography Steven V. Silver .... Director of Photography Film Editing Peter Chakos .... Film Editor Music Barenaked Ladies .... Theme By Sound Bruce Peters .... Production Sound Mixer Charlie McDaniel .... Sound Re-Recording Mixer Bob La Masney .... Sound Re-Recording Mixer Art John Shaffner .... Production Designer Mary T. Quigley .... Costume Designer Peggy Nichols .... Make-up Artist  6. The Cooper-Nowitzki Theorem Direction Mark Cendrowski .... Director Writing Chuck Lorre .... Created By Bill Prady .... Created By Tim Doyle .... Screenwriter Richard Rosenstock .... Screenwriter Stephen Engel .... Story By Daley Haggar .... Story By Production Bill Prady .... Executive Producer Lee Aronsohn .... Executive Producer Steven Molaro .... Producer Faye Oshima Belyeu .... Producer Chuck Lorre .... Executive Producer Peter Chakos .... Producer Cinematography Steven V. Silver .... Director of Photography Film Editing Peter Chakos .... Film Editor Music Barenaked Ladies .... Theme By Sound Bruce Peters .... Production Sound Mixer Charlie McDaniel .... Sound Re-Recording Mixer Bob La Masney .... Sound Re-Recording Mixer Art John Shaffner .... Production Designer Mary T. Quigley .... Costume Designer Peggy Nichols .... Make-up Artist  7. The Panty Piñata Polarization Direction Mark Cendrowski .... Director Writing Chuck Lorre .... Created By Bill Prady .... Created By Jennifer Glickman .... Screenwriter Steven Molaro .... Screenwriter Bill Prady .... Story By Tim Doyle .... Story By Production Bill Prady .... Executive Producer Lee Aronsohn .... Executive Producer Steven Molaro .... Producer Faye Oshima Belyeu .... Producer Chuck Lorre .... Executive Producer Peter Chakos .... Producer Cinematography Steven V. Silver .... Director of Photography Film Editing Peter Chakos .... Film Editor Music Barenaked Ladies .... Theme By Sound Bruce Peters .... Production Sound Mixer Charlie McDaniel .... Sound Re-Recording Mixer Bob La Masney .... Sound Re-Recording Mixer Art John Shaffner .... Production Designer Mary T. Quigley .... Costume Designer Peggy Nichols .... Make-up Artist  8. The Lizard Spock Expansion Direction Mark Cendrowski .... Director Writing Chuck Lorre .... Created By Bill Prady .... Created By Dave Goetsch .... Screenwriter Jennifer Glickman .... Screenwriter Bill Prady .... Story By Production Bill Prady .... Executive Producer Lee Aronsohn .... Executive Producer Steven Molaro .... Producer Faye Oshima Belyeu .... Producer Chuck Lorre .... Executive Producer Peter Chakos .... Producer Cinematography Steven V. Silver .... Director of Photography Film Editing Peter Chakos .... Film Editor Music Barenaked Ladies .... Theme By Sound Bruce Peters .... Production Sound Mixer Charlie McDaniel .... Sound Re-Recording Mixer Bob La Masney .... Sound Re-Recording Mixer Art John Shaffner .... Production Designer Mary T. Quigley .... Costume Designer Peggy Nichols .... Make-up Artist  9. The White Asparagus Triangulation Direction Mark Cendrowski .... Director Writing Chuck Lorre .... Created By Bill Prady .... Created By Stephen Engel .... Screenwriter Richard Rosenstock .... Screenwriter Dave Goetsch .... Story By Steven Molaro .... Story By Production Bill Prady .... Executive Producer Lee Aronsohn .... Executive Producer Steven Molaro .... Producer Faye Oshima Belyeu .... Producer Chuck Lorre .... Executive Producer Peter Chakos .... Producer Cinematography Steven V. Silver .... Director of Photography Film Editing Peter Chakos .... Film Editor Music Barenaked Ladies .... Theme By Sound Bruce Peters .... Production Sound Mixer Charlie McDaniel .... Sound Re-Recording Mixer Bob La Masney .... Sound Re-Recording Mixer Art John Shaffner .... Production Designer Mary T. Quigley .... Costume Designer Peggy Nichols .... Make-up Artist  10. The Vartabedian Conundrum Direction Mark Cendrowski .... Director Writing Chuck Lorre .... Created By Bill Prady .... Created By Bill Prady .... Screenwriter Richard Rosenstock .... Screenwriter Chuck Lorre .... Story By Steven Molaro .... Story By Production Bill Prady .... Executive Producer Lee Aronsohn .... Executive Producer Steven Molaro .... Producer Faye Oshima Belyeu .... Producer Chuck Lorre .... Executive Producer Peter Chakos .... Producer Cinematography Steven V. Silver .... Director of Photography Film Editing Peter Chakos .... Film Editor Music Barenaked Ladies .... Theme By Sound Bruce Peters .... Production Sound Mixer Charlie McDaniel .... Sound Re-Recording Mixer Bob La Masney .... Sound Re-Recording Mixer Art John Shaffner .... Production Designer Mary T. Quigley .... Costume Designer Peggy Nichols .... Make-up Artist  11. The Bath Item Gift Hypothesis Direction Mark Cendrowski .... Director Writing Chuck Lorre .... Created By Bill Prady .... Created By Stephen Engel .... Screenwriter Eric Kaplan .... Screenwriter Bill Prady .... Story By Richard Rosenstock .... Story By Production Bill Prady .... Executive Producer Lee Aronsohn .... Executive Producer Steven Molaro .... Producer Faye Oshima Belyeu .... Producer Chuck Lorre .... Executive Producer Peter Chakos .... Producer Cinematography Steven V. Silver .... Director of Photography Film Editing Peter Chakos .... Film Editor Music Barenaked Ladies .... Theme By Sound Bruce Peters .... Production Sound Mixer Charlie McDaniel .... Sound Re-Recording Mixer Bob La Masney .... Sound Re-Recording Mixer Art John Shaffner .... Production Designer Mary T. Quigley .... Costume Designer Peggy Nichols .... Make-up Artist  12. The Killer Robot Instability Direction Mark Cendrowski .... Director Writing Chuck Lorre .... Created By Bill Prady .... Created By Steven Molaro .... Screenwriter Daley Haggar .... Screenwriter Bill Prady .... Story By Richard Rosenstock .... Story By Production Bill Prady .... Executive Producer Lee Aronsohn .... Executive Producer Steven Molaro .... Producer Faye Oshima Belyeu .... Producer Chuck Lorre .... Executive Producer Peter Chakos .... Producer Cinematography Steven V. Silver .... Director of Photography Film Editing Peter Chakos .... Film Editor Music Barenaked Ladies .... Theme By Sound Bruce Peters .... Production Sound Mixer Charlie McDaniel .... Sound Re-Recording Mixer Bob La Masney .... Sound Re-Recording Mixer Art John Shaffner .... Production Designer Mary T. Quigley .... Costume Designer Peggy Nichols .... Make-up Artist  13. The Friendship Algorithm Direction Mark Cendrowski .... Director Writing Chuck Lorre .... Created By Bill Prady .... Created By Chuck Lorre .... Screenwriter Steven Molaro .... Screenwriter Bill Prady .... Story By Richard Rosenstock .... Story By Production Bill Prady .... Executive Producer Lee Aronsohn .... Executive Producer Steven Molaro .... Producer Faye Oshima Belyeu .... Producer Chuck Lorre .... Executive Producer Peter Chakos .... Producer Cinematography Steven V. Silver .... Director of Photography Film Editing Peter Chakos .... Film Editor Music Barenaked Ladies .... Theme By Sound Bruce Peters .... Production Sound Mixer Charlie McDaniel .... Sound Re-Recording Mixer Bob La Masney .... Sound Re-Recording Mixer Art John Shaffner .... Production Designer Mary T. Quigley .... Costume Designer Peggy Nichols .... Make-up Artist  14. The Financial Permeability Direction Mark Cendrowski .... Director Writing Chuck Lorre .... Created By Bill Prady .... Created By Richard Rosenstock .... Screenwriter Eric Kaplan .... Screenwriter Chuck Lorre .... Story By Steven Molaro .... Story By Production Bill Prady .... Executive Producer Lee Aronsohn .... Executive Producer Steven Molaro .... Producer Faye Oshima Belyeu .... Producer Chuck Lorre .... Executive Producer Peter Chakos .... Producer Cinematography Steven V. Silver .... Director of Photography Film Editing Peter Chakos .... Film Editor Music Barenaked Ladies .... Theme By Sound Bruce Peters .... Production Sound Mixer Charlie McDaniel .... Sound Re-Recording Mixer Bob La Masney .... Sound Re-Recording Mixer Art John Shaffner .... Production Designer Mary T. Quigley .... Costume Designer Peggy Nichols .... Make-up Artist  15. The Maternal Capacitance Direction Mark Cendrowski .... Director Writing Chuck Lorre .... Created By Bill Prady .... Created By Richard Rosenstock .... Screenwriter Steven Molaro .... Screenwriter Chuck Lorre .... Story By Bill Prady .... Story By Production Bill Prady .... Executive Producer Lee Aronsohn .... Executive Producer Steven Molaro .... Producer Faye Oshima Belyeu .... Producer Chuck Lorre .... Executive Producer Peter Chakos .... Producer Cinematography Steven V. Silver .... Director of Photography Film Editing Peter Chakos .... Film Editor Music Barenaked Ladies .... Theme By Sound Bruce Peters .... Production Sound Mixer Charlie McDaniel .... Sound Re-Recording Mixer Bob La Masney .... Sound Re-Recording Mixer Art John Shaffner .... Production Designer Mary T. Quigley .... Costume Designer Peggy Nichols .... Make-up Artist  16. The Cushion Saturation Direction Mark Cendrowski .... Director Writing Chuck Lorre .... Created By Bill Prady .... Created By Bill Prady .... Screenwriter Lee Aronsohn .... Screenwriter Chuck Lorre .... Story By Production Bill Prady .... Executive Producer Lee Aronsohn .... Executive Producer Steven Molaro .... Producer Faye Oshima Belyeu .... Producer Chuck Lorre .... Executive Producer Peter Chakos .... Producer Cinematography Steven V. Silver .... Director of Photography Film Editing Peter Chakos .... Film Editor Music Barenaked Ladies .... Theme By Sound Bruce Peters .... Production Sound Mixer Charlie McDaniel .... Sound Re-Recording Mixer Bob La Masney .... Sound Re-Recording Mixer Art John Shaffner .... Production Designer Mary T. Quigley .... Costume Designer Peggy Nichols .... Make-up Artist  17. The Terminator Decoupling Direction Mark Cendrowski .... Director Writing Chuck Lorre .... Created By Bill Prady .... Created By Tim Doyle .... Screenwriter Stephen Engel .... Screenwriter Bill Prady .... Story By Dave Goetsch .... Story By Production Bill Prady .... Executive Producer Lee Aronsohn .... Executive Producer Steven Molaro .... Producer Faye Oshima Belyeu .... Producer Chuck Lorre .... Executive Producer Peter Chakos .... Producer Cinematography Steven V. Silver .... Director of Photography Film Editing Peter Chakos .... Film Editor Music Barenaked Ladies .... Theme By Sound Bruce Peters .... Production Sound Mixer Charlie McDaniel .... Sound Re-Recording Mixer Bob La Masney .... Sound Re-Recording Mixer Art John Shaffner .... Production Designer Mary T. Quigley .... Costume Designer Peggy Nichols .... Make-up Artist  18. The Work Song Nanocluster Direction Peter Chakos .... Director Writing Chuck Lorre .... Created By Bill Prady .... Created By Dave Goetsch .... Screenwriter Richard Rosenstock .... Screenwriter Bill Prady .... Story By Lee Aronsohn .... Story By Production Bill Prady .... Executive Producer Lee Aronsohn .... Executive Producer Steven Molaro .... Producer Faye Oshima Belyeu .... Producer Chuck Lorre .... Executive Producer Peter Chakos .... Producer Cinematography Steven V. Silver .... Director of Photography Film Editing Peter Chakos .... Film Editor Music Barenaked Ladies .... Theme By Sound Bruce Peters .... Production Sound Mixer Charlie McDaniel .... Sound Re-Recording Mixer Bob La Masney .... Sound Re-Recording Mixer Art John Shaffner .... Production Designer Mary T. Quigley .... Costume Designer Peggy Nichols .... Make-up Artist  19. The Dead Hooker Juxtaposition Direction Mark Cendrowski .... Director Writing Chuck Lorre .... Created By Bill Prady .... Created By Steven Molaro .... Writer Production Bill Prady .... Executive Producer Lee Aronsohn .... Executive Producer Steven Molaro .... Producer Faye Oshima Belyeu .... Producer Chuck Lorre .... Executive Producer Peter Chakos .... Producer Cinematography Steven V. Silver .... Director of Photography Film Editing Peter Chakos .... Film Editor Music Barenaked Ladies .... Theme By Sound Bruce Peters .... Production Sound Mixer Charlie McDaniel .... Sound Re-Recording Mixer Bob La Masney .... Sound Re-Recording Mixer Art John Shaffner .... Production Designer Mary T. Quigley .... Costume Designer Peggy Nichols .... Make-up Artist  20. The Hofstadter Isotope Direction Mark Cendrowski .... Director Writing Chuck Lorre .... Created By Bill Prady .... Created By Dave Goetsch .... Writer Production Bill Prady .... Executive Producer Lee Aronsohn .... Executive Producer Steven Molaro .... Producer Faye Oshima Belyeu .... Producer Chuck Lorre .... Executive Producer Peter Chakos .... Producer Cinematography Steven V. Silver .... Director of Photography Film Editing Peter Chakos .... Film Editor Music Barenaked Ladies .... Theme By Sound Bruce Peters .... Production Sound Mixer Charlie McDaniel .... Sound Re-Recording Mixer Bob La Masney .... Sound Re-Recording Mixer Art John Shaffner .... Production Designer Mary T. Quigley .... Costume Designer Peggy Nichols .... Make-up Artist  21. The Vegas Renormalization Direction Mark Cendrowski .... Director Writing Chuck Lorre .... Created By Bill Prady .... Created By Steven Molaro .... Screenwriter Jessica Ambrosetti .... Story By Nicole Lorre .... Story By Andrew Roth .... Story By Production Bill Prady .... Executive Producer Lee Aronsohn .... Executive Producer Steven Molaro .... Producer Faye Oshima Belyeu .... Producer Chuck Lorre .... Executive Producer Peter Chakos .... Producer Cinematography Steven V. Silver .... Director of Photography Film Editing Peter Chakos .... Film Editor Music Barenaked Ladies .... Theme By Sound Bruce Peters .... Production Sound Mixer Charlie McDaniel .... Sound Re-Recording Mixer Bob La Masney .... Sound Re-Recording Mixer Art John Shaffner .... Production Designer Mary T. Quigley .... Costume Designer Peggy Nichols .... Make-up Artist  22. The Classified Materials Turbulence Direction Mark Cendrowski .... Director Writing Chuck Lorre .... Created By Bill Prady .... Created By Bill Prady .... Screenwriter Steven Molaro .... Screenwriter Chuck Lorre .... Story By Lee Aronsohn .... Story By Production Bill Prady .... Executive Producer Lee Aronsohn .... Executive Producer Steven Molaro .... Producer Faye Oshima Belyeu .... Producer Chuck Lorre .... Executive Producer Peter Chakos .... Producer Cinematography Steven V. Silver .... Director of Photography Film Editing Peter Chakos .... Film Editor Music Barenaked Ladies .... Theme By Sound Bruce Peters .... Production Sound Mixer Charlie McDaniel .... Sound Re-Recording Mixer Bob La Masney .... Sound Re-Recording Mixer Art John Shaffner .... Production Designer Mary T. Quigley .... Costume Designer Peggy Nichols .... Make-up Artist  23. The Monopolar Expedition Direction Mark Cendrowski .... Director Writing Chuck Lorre .... Created By Bill Prady .... Created By Eric Kaplan .... Writer Richard Rosenstock .... Writer Production Bill Prady .... Executive Producer Lee Aronsohn .... Executive Producer Steven Molaro .... Producer Faye Oshima Belyeu .... Producer Chuck Lorre .... Executive Producer Peter Chakos .... Producer Cinematography Steven V. Silver .... Director of Photography Film Editing Peter Chakos .... Film Editor Music Barenaked Ladies .... Theme By Sound Bruce Peters .... Production Sound Mixer Charlie McDaniel .... Sound Re-Recording Mixer Bob La Masney .... Sound Re-Recording Mixer Art John Shaffner .... Production Designer Mary T. Quigley .... Costume Designer Peggy Nichols .... Make-up Artist
Cast  1. The Bad Fish Paradigm Johnny Galecki .... Leonard Hofstadter Jim Parsons .... Sheldon Cooper Kaley Cuoco .... Penny Simon Helberg .... Howard Wolowitz Kunal Nayyar .... Rajesh Koothrappali Carol Ann Susi .... Mrs. Wolowitz (voice)  2. The Codpiece Topology Johnny Galecki .... Leonard Hofstadter Jim Parsons .... Sheldon Cooper Kaley Cuoco .... Penny Simon Helberg .... Howard Wolowitz Kunal Nayyar .... Rajesh Koothrappali Sara Gilbert .... Leslie Winkle Travis Schuldt .... Eric  3. The Barbarian Sublimination Johnny Galecki .... Leonard Hofstadter Jim Parsons .... Sheldon Cooper Kaley Cuoco .... Penny Simon Helberg .... Howard Wolowitz Kunal Nayyar .... Rajesh Koothrappali Sara Gilbert .... Leslie Winkle Mark Harelik .... Dr. Gablehauser Tyler Olson .... Blaine Mark Hames .... Tom  4. The Griffin Equivalency Johnny Galecki .... Leonard Hofstadter Jim Parsons .... Sheldon Cooper Kaley Cuoco .... Penny Simon Helberg .... Howard Wolowitz Kunal Nayyar .... Rajesh Koothrappali Charlie Sheen .... Himself Mark Harelik .... Dr. Gablehauser Brian George .... Dr. Koothrappali Alice Amter .... Mrs. Koothrappali  5. The Euclid Alternative Johnny Galecki .... Leonard Hofstadter Jim Parsons .... Sheldon Cooper Kaley Cuoco .... Penny Simon Helberg .... Howard Wolowitz Kunal Nayyar .... Rajesh Koothrappali Octavia Spencer .... Octavia Elena Campbell-Martinez .... Maria Livia Treviño .... Lourdes  6. The Cooper-Nowitzki Theorem Johnny Galecki .... Leonard Hofstadter Jim Parsons .... Sheldon Cooper Kaley Cuoco .... Penny Simon Helberg .... Howard Wolowitz Kunal Nayyar .... Rajesh Koothrappali Sara Gilbert .... Leslie Winkle Riki Lindhome .... Ramona Emily Happe .... Kathy  7. The Panty Piñata Polarization Johnny Galecki .... Leonard Hofstadter Jim Parsons .... Sheldon Cooper Kaley Cuoco .... Penny Simon Helberg .... Howard Wolowitz Kunal Nayyar .... Rajesh Koothrappali Analeigh Tipton .... Analeigh Samantha Potter .... Model  8. The Lizard Spock Expansion Johnny Galecki .... Leonard Hofstadter Jim Parsons .... Sheldon Cooper Kaley Cuoco .... Penny Simon Helberg .... Howard Wolowitz Kunal Nayyar .... Rajesh Koothrappali Sara Rue .... Stephanie Carol Ann Susi .... Mrs. Wolowitz (voice) Jennifer Hale .... News Announcer (voice) Robert Clotworthy .... Announcer (voice)  9. The White Asparagus Triangulation Johnny Galecki .... Leonard Hofstadter Jim Parsons .... Sheldon Cooper Kaley Cuoco .... Penny Simon Helberg .... Howard Wolowitz Kunal Nayyar .... Rajesh Koothrappali Sara Rue .... Stephanie  10. The Vartabedian Conundrum Johnny Galecki .... Leonard Hofstadter Jim Parsons .... Sheldon Cooper Kaley Cuoco .... Penny Simon Helberg .... Howard Wolowitz Kunal Nayyar .... Rajesh Koothrappali Sara Rue .... Stephanie  11. The Bath Item Gift Hypothesis Johnny Galecki .... Leonard Hofstadter Jim Parsons .... Sheldon Cooper Kaley Cuoco .... Penny Simon Helberg .... Howard Wolowitz Kunal Nayyar .... Rajesh Koothrappali Michael Trucco .... Dr. David Underhill Michael Hyatt .... Charlotte  12. The Killer Robot Instability Johnny Galecki .... Leonard Hofstadter Jim Parsons .... Sheldon Cooper Kaley Cuoco .... Penny Simon Helberg .... Howard Wolowitz Kunal Nayyar .... Rajesh Koothrappali Carol Ann Susi .... Mrs. Wolowitz (voice) John Ross Bowie .... Barry Kripke  13. The Friendship Algorithm Johnny Galecki .... Leonard Hofstadter Jim Parsons .... Sheldon Cooper Kaley Cuoco .... Penny Simon Helberg .... Howard Wolowitz Kunal Nayyar .... Rajesh Koothrappali John Ross Bowie .... Barry Kripke Will Deutsch .... Jeremy Jane Galloway Heitz .... Mildred Jade Zdanow .... Rebecca  14. The Financial Permeability Johnny Galecki .... Leonard Hofstadter Jim Parsons .... Sheldon Cooper Kaley Cuoco .... Penny Simon Helberg .... Howard Wolowitz Kunal Nayyar .... Rajesh Koothrappali Brian Patrick Wade .... Kurt  15. The Maternal Capacitance Johnny Galecki .... Leonard Hofstadter Jim Parsons .... Sheldon Cooper Kaley Cuoco .... Penny Simon Helberg .... Howard Wolowitz Kunal Nayyar .... Rajesh Koothrappali Christine Baranski .... Beverly  16. The Cushion Saturation Johnny Galecki .... Leonard Hofstadter Jim Parsons .... Sheldon Cooper Kaley Cuoco .... Penny Simon Helberg .... Howard Wolowitz Kunal Nayyar .... Rajesh Koothrappali Sara Gilbert .... Leslie Winkle Carol Ann Susi .... Mrs. Wolowitz (voice)  17. The Terminator Decoupling Johnny Galecki .... Leonard Hofstadter Jim Parsons .... Sheldon Cooper Kaley Cuoco .... Penny Simon Helberg .... Howard Wolowitz Kunal Nayyar .... Rajesh Koothrappali Summer Glau .... Herself Dr. George Smoot .... Himself Robert Clotworthy .... Conductor (voice)  18. The Work Song Nanocluster Johnny Galecki .... Leonard Hofstadter Jim Parsons .... Sheldon Cooper Kaley Cuoco .... Penny Simon Helberg .... Howard Wolowitz Kunal Nayyar .... Rajesh Koothrappali  19. The Dead Hooker Juxtaposition Johnny Galecki .... Leonard Hofstadter Jim Parsons .... Sheldon Cooper Kaley Cuoco .... Penny Simon Helberg .... Howard Wolowitz Kunal Nayyar .... Rajesh Koothrappali Carol Ann Susi .... Mrs. Wolowitz (voice) Valerie Azlynn .... Alicia  20. The Hofstadter Isotope Johnny Galecki .... Leonard Hofstadter Jim Parsons .... Sheldon Cooper Kaley Cuoco .... Penny Simon Helberg .... Howard Wolowitz Kunal Nayyar .... Rajesh Koothrappali Kevin Sussman .... Stuart  21. The Vegas Renormalization Johnny Galecki .... Leonard Hofstadter Jim Parsons .... Sheldon Cooper Kaley Cuoco .... Penny Simon Helberg .... Howard Wolowitz Kunal Nayyar .... Rajesh Koothrappali Jodi Lyn O'Keefe .... Mikayla  22. The Classified Materials Turbulence Johnny Galecki .... Leonard Hofstadter Jim Parsons .... Sheldon Cooper Kaley Cuoco .... Penny Simon Helberg .... Howard Wolowitz Kunal Nayyar .... Rajesh Koothrappali Kevin Sussman .... Stuart Robert Clotworthy .... Astronaut (voice) Travis Davis .... Ground Controller (voice)  23. The Monopolar Expedition Johnny Galecki .... Leonard Hofstadter Jim Parsons .... Sheldon Cooper Kaley Cuoco .... Penny Simon Helberg .... Howard Wolowitz Kunal Nayyar .... Rajesh Koothrappali Carol Ann Susi .... Mrs. Wolowitz (voice) Brian George .... Dr. Koothrappali Alice Amter .... Mrs. Koothrappali