Leonard Hofstadter
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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
Johnny Galecki as Dr. Leonard Hofstadter
Kaley Cuoco (who portrays Penny) and Johnny Galecki at PaleyFest 2013
Johnny Galecki
Videos
John Mark Galecki is an American actor. On television, he played Leonard Hofstadter on The Big Bang Theory and David Healy in Roseanne and The Conners. Galecki also appeared in the films Prancer, Nati
Leonard Hofstadter
…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…
Galecki at the 2017 San Diego Comic-Con
Galecki in July 2008
Galecki at PaleyFest 2013