Leonard Hofstadter

Not to be confused with Lennard Hofstede.

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 nameLeonard Leakey Hofstadter
GenderMale
TitleDoctor
OccupationExperimental physicist
Family
  • Beverly Hofstadter (mother)
  • Alfred Hofstadter (father)
  • Michael Hofstadter (brother)
  • One or more niece and/or nephews via Michael
  • Unnamed sister
  • Nephews via sister:[1]
    • Neil
    • Jeffrey
    • Scott
    • William
    • Richard
  • Floyd (uncle)
  • Nancy (aunt)
  • Unnamed Child
SpousePenny
Relatives
  • Wyatt (father-in-law)
    Susan (mother-in-law)
    Randall (brother-in-law)
    Lisa (sister-in-law)
NationalityAmerican

Leonard Leakey Hofstadter,[2][3] Ph.D., is a fictional character portrayed by Johnny Galecki and one of the main protagonists in the 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[4] and married in Las Vegas.

  1. ^ "The Procreation Calculation". The Big Bang Theory. Season 12. Episode 3. October 4, 2018. 12:16 minutes in. CBS.
  2. ^ "The Middle-Earth Paradigm". The Big Bang Theory. Season 1. Episode 6. October 29, 2007. 05:16 minutes in. CBS.
  3. ^ "The Big Bang Theory Leonard Hofstadter". the-big-bang-theory.com. Retrieved December 14, 2022.
  4. ^ "The Gorilla Dissolution". The Big Bang Theory. Season 7. Episode 23. May 8, 2014.