Two nerdy physicists share an apartment and an unlikely friendship with their beautiful neighbor with whom one of them is infatuated. Like the universe after the big bang, the show's popularity expanded, thanks to breakout star Jim Parsons, along with the chemistry among the friends and the developing romance between Leonard and Penny. The addition of M (more…)
Johnny Galecki Leonard Hofstadter 284 Episodes (2007-2019)
Simon Helberg Howard Wolowitz 284 Episodes (2007-2019)
Kunal Nayyar Rajesh Koothrappali 284 Episodes (2007-2019)
Kaley Cuoco Penny 284 Episodes (2007-2019)
Jim Parsons Sheldon Cooper 283 Episodes (2007-2019)
Melissa Rauch Bernadette Rostenkowski 247 Episodes (2008-2019)
Mayim Bialik Amy Farrah Fowler 244 Episodes (2009-2019)
Kevin Sussman Stuart 243 Episodes (2008-2019)
Carol Ann Susi Mrs. Wolowitz 38 Episodes (2007-2014)
Sara Gilbert Instructor, Leslie Winkle 30 Episodes (2007-2016)
Jason Kravits Danny 23 Episodes (2018-2019)
John Ross Bowie Barry Kripke, Kripke 21 Episodes (2009-2018)
Vernee Watson Althea 20 Episodes (2007-2016)
Vernee Watson-Johnson Althea 20 Episodes (2007-2016)
Mark Harelik Dr. Eric Gablehauser, Gablehauser 19 Episodes (2007-2008)
James Hong Chen 17 Episodes (2007-2008)
Wil Wheaton Himself 17 Episodes (2009-2019)
Laura Spencer Ellen, Emily, Emily Sweeney 15 Episodes (2014-2017)
Christine Baranski Beverly, Dr. Beverly Hofstadter 13 Episodes (2009-2019)
Laurie Metcalf Mary, Mary Cooper 12 Episodes (2007-2018)
Brian George Dr. Koothrappali, Dr. V.M. Koothrappali 12 Episodes (2007-2019)
Brian Posehn Bert 12 Episodes (2013-2018)
Brian Thomas Smith Zach, Zack 12 Episodes (2010-2019)
Aarti Mann Priya 9 Episodes (2011-2011)
Joshua Malina Pres. Seibert, Presdient Siebert, President Siebert 8 Episodes (2011-2019)
Alice Amter Mrs. Koothrappali 8 Episodes (2007-2012)
Carol Ann Susi Mrs. Wolowitz, Mrs.Wolowitz 7 Episodes (2007-2014)
Rati Gupta Anu 7 Episodes (2018-2019)
Bob Newhart Arthur Jeffries, Prof. Proton, Prof. Proton/Arthur, Professor Proton 6 Episodes (2013-2018)
Casey Sander Mr. Rostenkowski 6 Episodes (2012-2015)
Kate Micucci Lucy 6 Episodes (2013-2017)
Lauren Lapkus Denise 6 Episodes (2018-2019)
Regina King Janine Davis, Mrs. Davis 5 Episodes (2013-2017)
Margo Harshman Alex 5 Episodes (2012-2013)
Pamela Adlon Halley, Halley (O.S.) 5 Episodes (2016-2019)
Alessandra Torresani Claire 5 Episodes (2016-2017)
Keith Carradine Wyatt 4 Episodes (2010-2019)
Stephen Hawking Himself 4 Episodes (2012-2017)
Pamela Adlon Halley 4 Episodes (2016-2019)
Mike Massimino Himself 4 Episodes (2012-2014)
Anthony Del Broccolo 4 Episodes (2011-2019)
Jerry O'Connell George, Georgie 3 Episodes (2018-2018)
Sara Rue Stephanie 3 Episodes (2008-2008)
Stephen Merchant Dave, Ethan 3 Episodes (2015-2015)
Ira Flatow Himself 3 Episodes (2009-2017)
Stephen Engel 3 Episodes (2008-2009)
Marcus Folmar Guard, Police Officer, Security Guard 3 Episodes (2010-2016)
Pasha Lychnikoff Dimitri 3 Episodes (2012-2012)
Riki Lindhome Dr. Ramona Nowitzki, Ramona 3 Episodes (2008-2017)
Andy Gordon 3 Episodes (2017-2018)
Elena Campbell-Martinez Cleaning Lady, Maria 3 Episodes (2008-2015)
Richard Rosenstock 3 Episodes (2008-2010)
Brian Patrick Wade Kurt 3 Episodes (2007-2009)
Courtney Henggeler Missy 2 Episodes (2008-2018)
Dakin Matthews Santa 2 Episodes (2012-2014)
Kal Penn Dr. Campbell 2 Episodes (2019-2019)
Kathy Bates Mrs. Fowler 2 Episodes (2018-2018)
LeVar Burton Himself 2 Episodes (2012-2014)
Sean Astin Dr. Pemberton 2 Episodes (2019-2019)
Stephen Root Dan 2 Episodes (2014-2014)
Katee Sackhoff Herself 2 Episodes (2009-2010)
Teller Mr. Fowler 2 Episodes (2018-2018)
Bill Nye Himself 2 Episodes (2013-2018)
Dean Norris Col. Williams 2 Episodes (2016-2017)
Alex Ball Waiter 2 Episodes (2013-2014)
George Smoot Himself 2 Episodes (2009-2019)
Katie Leclerc Emily 2 Episodes (2011-2017)
Molly Morgan Bethany, Hostess 2 Episodes (2009-2015)
Lindsey Kraft Marissa 2 Episodes (2019-2019)
Analeigh Tipton Analeigh, Vanessa 2 Episodes (2008-2015)
Josh Brener Dale 2 Episodes (2011-2013)
Andrea Roth 1 Episode (2009)
Billy Bob Thornton Dr. Oliver Lorvis 1 Episode (2014)
Brent Spiner Himself 1 Episode (2011)
Carrie Fisher Herself 1 Episode (2014)
Christopher Lloyd Theodore 1 Episode (2016)
_c828x1104+0+0_200x267.png|https://tvguide1.cbsistatic.com/mediabin/showcards/celebs/d-f/thumbs/dj-qualls-145706(2)_c828x1104+0+0_400x533.png|https://tvguide1.cbsistatic.com/mediabin/showcards/celebs/d-f/thumbs/dj-qualls-145706(2)_c828x1104+0+0_600x800.png "D.J. Qualls")
D.J. Qualls Toby 1 Episode (2008)
Eliza Dushku FBI Agent 1 Episode (2010)
George Takei 1 Episode (2010)
George Wyner Dr. Zhang 1 Episode (2017)
James Earl Jones Himself 1 Episode (2014)
Jane Kaczmarek 1 Episode (2016)
Jessica Walter Mrs. Latham 1 Episode (2011)
Jim Holmes Tim 1 Episode (2016)
Jim Meskimen Doctor/Man 1 Episode (2015)
Jodi Lyn O'Keefe Mikayla 1 Episode (2009)
Joel Brooks Professor Goldfarb 1 Episode (2008)
Joel Murray Doug 1 Episode (2008)
Judd Hirsch Alfred 1 Episode (2016)
Judy Greer Dr. Elizabeth Plimpton 1 Episode (2010)
Kareem Abdul-Jabbar Himself 1 Episode (2019)
Kevin Smith Himself 1 Episode (2015)
Kevin Smith Himself 1 Episode (2015)
Leonard Nimoy Spock 1 Episode (2012)
Mark Hamill Himself 1 Episode (2018)
Matt Battaglia Officer Reynolds 1 Episode (2013)
Michael Rapaport Kenny 1 Episode (2015)
Michael Trucco David 1 Episode (2008)
Peter MacNicol Doctor Wolcott 1 Episode (2018)
Peter Onorati Angelo 1 Episode (2012)
Stacey Travis Sandy 1 Episode (2011)
Stephen Hawking Himself 1 Episode (2012)
Steve Valentine Kenneth 1 Episode (2014)
Susan Chuang Dr. Harris 1 Episode (2017)
Troy Winbush Paramedic No. 2 1 Episode (2013)
Walton Goggins Oliver 1 Episode (2018)
William Shatner Himself 1 Episode (2019)
Yeardley Smith Sandy 1 Episode (2010)
Jonathan Schmock Jonathan 1 Episode (2012)
Andrew Walker Mike 1 Episode (2008)
Danica McKellar Abby 1 Episode (2010)
Eddie Shin Dr. Park 1 Episode (2018)
Elizabeth Bogush Dr. Catherine Millstone 1 Episode (2009)
Julio Oscar Mechoso Officer Hackett 1 Episode (2010)
Meagen Fay Mrs. Rostenkowski 1 Episode (2012)
Nathan Fillion Customer 1 Episode (2015)
Summer Glau Herself 1 Episode (2009)
Travis Schuldt Eric 1 Episode (2008)
Lance Barber Jimmy 1 Episode (2011)
Michael Dempsey Security Guard 1 Episode (2015)
Patrika Darbo Grace 1 Episode (2015)
Eric Petersen Eric 1 Episode (2014)
Brian Greene Himself 1 Episode (2011)
Tania Raymonde Yvette 1 Episode (2014)
Oliver Muirhead Professor Laughlin 1 Episode (2009)
Todd Giebenhain Mitch 1 Episode (2019)
Paul Wilson Prof. Thorne 1 Episode (2014)
Ronald Hunter Dan 1 Episode (2008)
Meagan Fay Mrs. Rostenkowski 1 Episode (2012)
Steve Paymer Judge Taylor 1 Episode (2010)
Lewis Black Professor Crawley 1 Episode (2009)
Brooke D'Orsay 1 Episode (2007)
Adam Gregor Dimitri 1 Episode (2008)
Ajgie Kirkland Louie 1 Episode (2010)
Alison Martin Andrea 1 Episode (2018)
Allen Nabors Doug 1 Episode (2007)
Andre Boyer Kwame 1 Episode (2019)
Andrew Hill Newman Albert Einstein 1 Episode (2013)
Annie O'Donnell Mrs. Fowler 1 Episode (2010)
Annie O'Donnell Mrs. Lorvis 1 Episode (2010)
Bill Gates Himself 1 Episode (2018)
Buzz Aldrin Himself 1 Episode (2012)
Charlotte Newhouse Joy 1 Episode (2010)
Christopher Neiman Dr. Dreyfus 1 Episode (2014)
Chuck Carter Stan 1 Episode (2008)
Cynthia Holloway 1 Episode (2007)
Edward James Gage Mailman 1 Episode (2018)
Emma Degerstedt Emma 1 Episode (2008)
Erin O'Reilly Cheryl 1 Episode (2008)
Hira Ambrosino Cynthia 1 Episode (2019)
Howard Chan 1 Episode (2008)
Ian Reed Kesler Paramedic No. 1 1 Episode (2013)
Jane Galloway Heitz Mildred 1 Episode (2009)
Joe Manganiello Himself 1 Episode (2019)
John Apicella Archimedes 1 Episode (2013)
Judith Moreland Jan 1 Episode (2008)
June Squibb Meemaw 1 Episode (2016)
Karl T. Wright Jimmy 1 Episode (2012)
Kevin Brief Glen 1 Episode (2010)
Kimberly Kevon Williams 1 Episode (2007)
Lauri Johnson Mrs. Gunderson 1 Episode (2010)
Livia Trevino Lourdes 1 Episode (2008)
Mark Barrett Security Guard No. 2 1 Episode (2015)
Mark Berry Pit Boss 1 Episode (2018)
Mark Hames Tom 1 Episode (2008)
Matt Bennett Josh Wolowitz 1 Episode (2015)
Michael Patrick McGill Police Officer 1 Episode (2017)
Michelle Arthur Mrs. Petrescu 1 Episode (2018)
Neil deGrasse Tyson Himself 1 Episode (2018)
Octavia Spencer Octavia 1 Episode (2008)
Robert Clotworthy Dave Roeger 1 Episode (2012)
Sandra Marquez Woman 1 Episode (2008)
Sarah Buehler Sarah 1 Episode (2009)
Sergio Enrique Son 1 Episode (2008)
Shane Blades Customer 1 Episode (2016)
Sophie Oda Grace 1 Episode (2013)
Steve Wozniak Himself 1 Episode (2010)
Tiffany Dupont Angela 1 Episode (2011)
Treisa Gary Waitress 1 Episode (2007)
Valerie Azlynn Alicia 1 Episode (2009)
Wayne Wilderson Travis 1 Episode (2015)
Giovanni Bejarano Bellman 1 Episode (2018)
Bob Stephenson Wendell 1 Episode (2018)
Becky O'Donohue Becky 1 Episode (2012)
Creagen Dow Maitre D' 1 Episode (2016)
Matt Knudsen Waiter 1 Episode (2018)
Ryan Cartwright Cole 1 Episode (2012)
Tate Ellington Mitchell 1 Episode (2015)
James Maslow Bartender 1 Episode (2018)
Piper Mackenzie Harris Girl No. 1 1 Episode (2013)
Parvesh Cheena Marcus 1 Episode (2018)
Beth Behrs Nell 1 Episode (2018)
Blake Anderson 1 Episode (2016)
Lanny Joon Officer Shin 1 Episode (2011)
Steven Yeun Sebastian 1 Episode (2010)
Diamond White Girl No. 2 1 Episode (2013)
Neil Gaiman Himself 1 Episode (2018)
Sarayu Rao 1 Episode (2007)
Kikey Castillo Leslie 1 Episode (2018)
Megan Heyn Natalie 1 Episode (2015)
Chasty Ballesteros Karen 1 Episode (2019)
Rachna Khatau Kathleen 1 Episode (2018)
Brandon Jones The Flash 1 Episode (2016)
Marissa Cuevas Danielle 1 Episode (2017)
Lexie Contursi Girl 1 Episode (2014)
Beau Casper Smart Travis 1 Episode (2014)
Ciara Renee Sunny Morrow 1 Episode (2018)
Barak Hardley Pizza Delivery Guy 1 Episode (2013)
Dusan Brown Jeremy 1 Episode (2012)
H. Michael Croner Andre 1 Episode (2016)
Kip Thorne Himself 1 Episode (2019)
Kimberly Hebert Gregory Ms. Davora 1 Episode (2014)
Courtney Ford Alice 1 Episode (2011)
Jadon Sand Aaron 1 Episode (2012)
Dawson Fletcher Justin 1 Episode (2013)
Ellie Reed Jenna 1 Episode (2018)
David Theune Dr. Graybel 1 Episode (2018)
Amanda Payton 1 Episode (2016)
Bill Prady 284 Episodes (2007-2019)
Chuck Lorre 284 Episodes (2007-2019)
Eric Kaplan 9 Episodes (2008-2019)
Jim Reynolds 7 Episodes (2009-2019)
Bill Prady 284 Episodes (2007-2019)
Chuck Lorre 284 Episodes (2007-2019)
Mark Cendrowski 251 Episodes (2007-2019)
Anthony Rich 34 Episodes (2010-2019)
Tim Doyle 3 Episodes (2008-2009)
David Litt 2 Episodes (2007-2007)
Howard Murray 2 Episodes (2011-2011)
Anthony Joseph Rich 2 Episodes (2011-2015)
Joel Murray 1 Episode (2008)
Bob Koherr 1 Episode (2007)
Nicole Lorre 27 Episodes (2009-2019)
Andrew D. Weyman 1 Episode (2007)
Steven V. Silver 22 Episodes (2012-2019)
Steve Holland 8 Episodes (2009-2019)
Saladin K. Patterson 8 Episodes (2015-2017)
Lee Aronsohn 7 Episodes (2007-2019)
Steve Holland 6 Episodes (2009-2019)
Stephen Engel 6 Episodes (2008-2009)
Robert Cohen 4 Episodes (2007-2008)
Andy Gordon 4 Episodes (2017-2018)
James Burrows 2 Episodes (2007-2013)
Howard Murray 2 Episodes (2011-2011)
Anthony Joseph Rich 2 Episodes (2011-2015)
Joel Murray 1 Episode (2008)
Andrew D. Weyman 1 Episode (2007)
Richard Rosenstock 13 Episodes (2008-2010)
Steven Silver 1 Episode (2011)
Anthony Del Broccolo 1 Episode (2011)
Steve Holland 9 Episodes (2009-2019)
Jim Reynolds 9 Episodes (2009-2019)
Saladin Patterson 8 Episodes (2015-2017)
Anthony Del Broccolo 7 Episodes (2011-2019)
Steven Molaro 9 Episodes (2007-2019)
Peter Chakos 9 Episodes (2007-2019)
Eddie Gorodetsky 7 Episodes (2011-2019)
Sign up and add shows to get the latest updates about your favorite shows - Start Now
