Sep. 24, 2007
Returning Series
30 min.
CBS TV Network

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The Big Bang Theory tv show photo

The Big Bang Theory

Leonard and Sheldon are brilliant physicists, the kind of "beautiful minds" that understand how the universe works. But none of that genius helps them interact with people, especially women. All this begins to change when a free-spirited beauty named Penny moves in next door.

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Leonard Hofstadter The Big Bang Theory
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Leonard Hofstadter

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  Played by:
Johnny GaleckiJohnny Galecki
John Mark "Johnny" Galecki (born April 30, 1975) is an American actor. He is best known for ...

Character Bio

Leonard Hofstadter photo
Name: Leonard Leakey Hofstadter, PhD.
Occupation: Experimental physicist.
IQ: 173.

Leonard Hofstadter is an experimental physicist at Caltech. He shares an apartment with Sheldon Cooper.

While Leonard, along with the other geeks, is somewhat socially inept, Leonard would like to be better accepted outside of his geeky social group. Leonard is more well-adjusted than his companions, being more willing to try different things.

Episode Screenshots

08x01 - Locomotion Interruption
Season 8, Episode 01
06x21 - The Closure Alternative
Season 6, Episode 21
02x08 - The Lizard-Spock Expansion
Season 2, Episode 08
02x20 - The Hofstadter Isotope
Season 2, Episode 20
[More Episodes]

Leonard Hofstadter Quotes

10x21 - The Separation Agitation Season 10 / Episode 21: - The Separation Agitation

Raj Koothrappali: I feel bad for Bert.
Sheldon Cooper: So he's using his money to attract a mate. Is that any different than me using my intelligence to attract Amy, or Leonard using his power of grovelling to get Penny?
Leonard Hofstadter: Totally different. Bert's money might run out, but I can beg until the end of time.
Penny Hofstadter: All that, *and* he's shorter than me.
10x20 - The Recollection Dissipation Season 10 / Episode 20: - The Recollection Dissipation

Penny Hofstadter: Hey Leonard, if you're not busy tomorrow, I have to do a little reception at work.
Leonard Hofstadter: Oh, I would, but we need to make a push on the air force project.
Penny Hofstadter: Are you sure? We're celebrating our new ADD drug. I mean it'll probably be over in like six minutes
Sheldon Cooper: Did you say you guys are working on the guidance system tomorrow?
Leonard Hofstadter: Yeah, why?
Sheldon Cooper: Well, Sheldon said that he was going to work with my on our quantum perception projct.
Leonard Hofstadter: We've had this planned for a week.
Sheldon Cooper: Well, he reconfirmed with me this morning.
Raj Koothrappali: Guys, before this gets ugly, remember - the winner gets Sheldon.
[More Quotes]

Leonard Hofstadter Photos

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