49

Jim Parsons

as Sheldon Cooper

36

Kaley Cuoco

as Penny

47

Johnny Galecki

as Leonard Hofstadter

46

Mayim Bialik

as Amy Farrah Fowler

41

Kunal Nayyar

as Raj Koothrappali

41

Simon Helberg

as Howard Wolowitz

70

Christine Baranski

as Dr. Beverly Hofstadter

42

Melissa Rauch

as Bernadette Rostenkowski

47

Sara Gilbert

as Leslie Winkle

67

Laurie Metcalf

as Mary Cooper

51

Kevin Sussman

as Stuart Bloom

51

John Ross Bowie

as Barry Kripke

1952-2014

Carol Ann Susi

as Debbie Wolowitz

55

Brian Posehn

as Bert Kibbler

36

Laura Spencer

as Emily Sweeney

69

Brian George

as Dr. V.M. Koothrappali

56

Joshua Malina

as President Siebert

About The Big Bang Theory

About

Chuck Lorre created show about a group of intelligent but socially awkward scientists who struggle with love. The series won multiple Emmys during its illustrious run. 

Trivia

The show was the inspiration for the 2017 spin-off Young Sheldon, about the childhood of the character of Sheldon Cooper. With 276 episodes over 12 years, it became TV's longest-running multi-camera sitcom.