-Centered on 5 characters; 2 roommate geniuses who work at the California Institute of Technology, experimental physicist Leonard Hofstadter, and theoretical physicist Sheldon Cooper; their neighbor across the hall Penny, a blonde waitress and aspiring actress. They live at 2311 Los Robles Ave in Pasadena. Leonard and Sheldon have 2 other equally geeky and socially awkward co-workers and also friends Howard Wolowitz, an aerospace engineer and non-PhD and Rajesh Koothrapali, an astrophysicist working at Caltech.
-Johnny Galecki as Leonard Hofstadter: an experimental physicist with IQ of 173 who got his PhD when he was 24. Shares an apartment with colleague and friend Sheldon Cooper.
|He's the cutest nerd I've ever seen!!!!|
-Jim Parsons as Sheldon Cooper: Originally from East Texas, was a child prodigy with photographic memory who began college at age 11, started studies at age 14. Has a strict adherence to routine and an overly religious mother
|His character is funny. Cracks me up, and plus, he's cute. Cute and funny are a good combination|
-Kunal Nayyar as Rajesh Koothrapali: Originally from New Delhi, works as a particle astrophysicist. His fmaily is wealthy and communicate via webcam. Very shy around women and is unable to talk to them unless he drinks alcohol or is drunk.