List of The Big Bang Theory guest stars

This is a list of The Big Bang Theory guest stars. Most "played" themselves. The episodes in which they appeared are followed by the season in brackets.

Actors

• Sean Astin ^{[1] [2]} as Dr. Greg Pemberton
  • "The Confirmation Polarization" (12)
  • "The Laureate Accumulation" (12)
  • "The Plagiarism Schism" (12)
• Kathy Bates ^[3] as Mrs. Fowler, Amy Farrah Fowler's mother
  • "The Bow Tie Asymmetry" (11)
  • "The Conjugal Configuration" (12)
  • "The Consummation Deviation" (12)
• LeVar Burton ^{[4] [5]}
  • "The Toast Derivation" (4)
  • "The Habitation Configuration" (6)
  • "The Champagne Reflection" (8)
• Keith Carradine ^[3] as Wyatt, Penny's father
  • "The Boyfriend Complexity" (4)
  • "The Bachelor Party Corrosion" (9)
  • "The Conjugal Conjecture" (10)
  • "The Procreation Calculation" (12)
  • "The Donation Oscillation" (12)
• Eliza Dushku ^[5] as FBI Special Agent Angela Page
  • "The Apology Insufficiency" (4)
• Nathan Fillion ^[5]
  • "The Comic Book Store Regeneration" (8)
• Carrie Fisher ^{[4] [5]}
  • "The Convention Conundrum" (7)
• Sarah Michelle Gellar ^[4]
  • "The Stockholm Syndrome" (12)
• Summer Glau ^[5]
  • "The Terminator Decoupling" (2)
• Judy Greer ^[5] as Dr. Elizabeth Plimpton
  • "The Plimpton Stimulation" (3)
• Mark Hamill ^[5]
  • "The Bow Tie Asymmetry" (11)
• Courtney Henggeler ^[3] as Missy, Sheldon's sister
  • "The Pork Chop Indeterminacy" (1)
  • "The Bow Tie Asymmetry" (11)
• James Earl Jones ^{[4] [5]}
  • "The Convention Conundrum" (7)
• Christopher Lloyd ^[5] as Theodore, to whom Sheldon sublets his room
  • "The Property Division Collision" (10)
• Joe Manganiello ^{[4] [5]}
  • "The D&D Vortex" (12)
• Danica McKellar ^[6] as Abby
  • "The Psychic Vortex" (3)
• Leonard Nimoy ^[5]
  • "The Transporter Malfunction" (5, voice)
• Jerry O'Connell ^[5] as George Cooper Jr., Sheldon's older brother
  • "The Sibling Realignment" (11)
  • "The Bow Tie Asymmetry" (11)
  • "The Tam Turbulence" (12)
• Jodi Lyn O'Keefe ^[3] as Mikayla, a prostitute
  • "The Vegas Renormalization" (2)
• Kal Penn ^{[1] [2]} as Dr. Kevin Campbell
  • "The Confirmation Polarization" (12)
  • "The Laureate Accumulation" (12)
  • "The Plagiarism Schism" (12)
• Katee Sackhoff ^[5]
  • "The Vengeance Formulation" (3)
  • "The Hot Troll Deviation" (4)
• Charlie Sheen ^[5]
  • "The Griffin Equivalency" (2)
• William Shatner ^[5]
  • "The D&D Vortex" (12)
• Kareem Abdul-Jabbar
  • "The D&D Vortex" (12)
• Kevin Smith ^[5]
  • "The Fortification Implementation" (8)
  • "The D&D Vortex" (12)
• Octavia Spencer ^[3] as a Department of Motor Vehicles employee
  • "The Euclid Alternative" (2)
• Brent Spiner ^[7]
  • "The Russian Rocket Reaction" (5)
• June Squibb ^[5] as Meemaw, Sheldon's grandmother
  • "The Meemaw Materialization" (9)
• George Takei ^[5]
  • "The Hot Troll Deviation" (4)
• Billy Bob Thornton ^[5] as Dr. Oliver Lorvis
  • "The Misinterpretation Agitation" (8)
• Analeigh Tipton
  • "The Panty Piñata Polarization" (2)
  • “The Mystery Date Observation” (9)
• Jessica Walter ^[5] as Mrs. Latham, a philanthropist
  • "The Benefactor Factor" (4)
• Adam West ^[5]
  • "The Celebration Experimentation" (9)
• Steven Yeun ^[3]
  • "The Staircase Implementation" (3)

Athletes

• Kareem Abdul-Jabbar ^[3]
  • "The D&D Vortex" (12)
• Rick Fox ^[5] as Glenn, Bernadette's ex-boyfriend
  • "The Love Car Displacement" (4)

Astronauts

• Buzz Aldrin ^{[5] [8]}
  • "The Holographic Excitation" (6)
• Mike Massimino ^[8]
  • "The Friendship Contraction" (5)
  • "The Countdown Reflection" (5)
  • "The Decoupling Fluctuation" (6)
  • "The Re-Entry Minimization" (6)
  • "The Table Polarization" (7)
  • "The First Pitch Insufficiency" (8)

Comedians

• Eric André as Joey
  • "The 21-Second Excitation" (4)
• Lewis Black ^[5] as Professor Crawley
  • "The Jiminy Conjecture" (3)
• Ellen DeGeneres ^[3]
  • "The Geology Elevation" (10)
  • "The Laureate Accumulation" (12)
• Howie Mandel ^[5]
  • "The Re-entry Minimization" (6)
• Stephen Merchant as Dave Gibbs
  • "The Spock Resonance" (9)
  • "The Mystery Date Observation" (9)
  • "The Earworm Reverberation" (9)
• Michael Rapaport ^[9] as Kenny Fitzgerald
  • "The Helium Insufficiency" (9)
• Bob Newhart as Arthur Jeffries, "Professor Proton"
  • "The Proton Resurgence" (6)
  • "The Proton Displacement" (7)
  • "The Proton Transmogrification" (7)
  • "The Opening Night Excitation" (9)
  • "The Proton Regeneration" (11)
  • "The Planetarium Collision" (12)
• Teller ^[3] as Mr. Fowler, Amy Farrah Fowler's father
  • "The Bow Tie Asymmetry" (11)
  • "The Conjugal Configuration" (12)
  • "The Consummation Deviation" (12)

Entrepreneurs

• Bill Gates ^[3]
  • "The Gates Excitation" (11)
• Elon Musk ^[5]
  • "The Platonic Permutation" (9)
• Steve Wozniak ^[5]
  • "The Cruciferous Vegetable Amplification" (4)

Scientists

• Frances Arnold ^[3]
  • "The Laureate Accumulation" (12)
• Brian Greene ^[8]
  • "The Herb Garden Germination" (4)
• Stephen Hawking ^{[4] [5] [8]}
  • "The Hawking Excitation" (5)
  • "The Extract Obliteration" (6, voice)
  • "The Relationship Diremption" (7, voice)
  • "The Troll Manifestation" (8)
  • "The Celebration Experimentation" (9)
  • "The Geology Elevation" (10)
  • "The Proposal Proposal" (11)
• George Smoot ^[8]
  • "The Laureate Accumulation" (12)
• Kip Thorne ^[3]
  • "The Laureate Accumulation" (12)
• Neil deGrasse Tyson ^[8]
  • "The Apology Insufficiency" (4)
  • "The Conjugal Configuration" (12)

Others

• Ira Flatow ^[6]
  • "The Vengeance Formulation" (3, voice)
  • "The Discovery Dissipation" (7)
  • "The Retraction Reaction" (11)
• Neil Gaiman ^[10]
  • "The Comet Polarization" (11)
• Stan Lee ^[5]
  • "The Excelsior Acquisition" (3)
• Adam Nimoy ^[11]
  • "The Spock Resonance" (9)
• Bill Nye ^{[4] [5] [8]}
  • "The Proton Displacement" (7)
  • "The Conjugal Configuration" (12)

References

1. Goldberg, Lesley (January 2, 2019). "'Big Bang Theory' Enlists Kal Penn, Sean Astin". The Hollywood Reporter . Retrieved September 5, 2024.
2. Mathews, Liam (January 2, 2019). "Men of Science Kal Penn and Sean Astin Will Guest on The Big Bang Theory". TV Guide . Retrieved September 5, 2024.
3. Acuna, Kirsten (May 17, 2019). "60 celebrities you probably forgot guest-starred on 'The Big Bang Theory'". Business Insider . Retrieved September 3, 2024.
4. Rochotte, Emily (June 28, 2023). "Celebrities You Didn't Know Guest Starred On 'The Big Bang Theory'". Esquire . Retrieved September 2, 2024.
5. Rovenstine, Dalene (April 4, 2019). "The Best Big Bang Theory Guest Stars, Ranked". TV Guide . Retrieved September 2, 2024.
6. Mathews, Liam (October 26, 2016). "The 11 Smartest People Who Have Appeared on The Big Bang Theory". TV Guide. Retrieved September 3, 2024.
7. Gibbons, Ben (December 29, 2023). "12 Best Guest Stars In The Big Bang Theory". Screen Rant . Retrieved September 5, 2024.
8. Weitekamp, Margaret A. (January 1, 2017). "The image of scientists in The Big Bang Theory". Physics Today . Vol. 70, no. 1. Retrieved September 3, 2024.
9. Potts, Kimberly (October 27, 2015). "The Big Bang Theory Recap: It's a Gas, Gas, Gas". Vulture.
10. Ray, Lincee (April 19, 2018). "The Big Bang Theory recap: 'The Comet Polarization'". Entertainment Weekly . Retrieved September 3, 2024.
11. Holmes, Mannie (October 29, 2015). "Leonard Nimoy's Son to Guest Star on 'The Big Bang Theory'". Variety . Retrieved September 5, 2024.