Leonard Hofstadter
| Dr. Leonard Hofstadter | |
|---|---|
| The Big Bang Theory / Young Sheldon character | |
Johnny Galecki as Dr. Leonard Hofstadter | |
| First appearance | "Pilot" (2007) (The Big Bang Theory) |
| Last appearance | "A Swedish Science Thing and the Equation for Toast" (2019) (Young Sheldon) |
| Created by | |
| Portrayed by |
|
| In-universe information | |
| Full name | Dr. Leonard Leakey Hofstadter |
| Gender | Male |
| Title | Doctor |
| Occupation | Experimental physicist |
| Family |
|
| Spouse | |
| Relatives |
|
| Nationality | American |
Leonard Leakey Hofstadter, Ph.D. is a fictional character portrayed by Johnny Galecki and one of the protagonists in the 2007–2019 CBS sitcom, The Big Bang Theory. Leonard is an experimental physicist who shares an apartment with his colleague and best friend, Dr. Sheldon Cooper. For his portrayal, Galecki was nominated for a Primetime Emmy Award and a Golden Globe Award in 2011.
Penny is Leonard's next-door neighbor (across the hall) and main love interest, and the teasing of romance between the two of them is a major force driving the series. In season 7, "The Gorilla Dissolution", they get engaged and married in Las Vegas.