The Big Bang Theory
2006
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John Mark Galecki (born April 30, 1975) is an American actor. He played Leonard Hofstadter in the CBS sitcom The Big Bang Theory (2007–2019) for which he received a Primetime Emmy Award nomination, and David Healy in the ABC sitcoms Roseanne (1992–1997; 2018) and The Conners (2018–2019).
IMDb profile of Johnny Galecki, an American actor, producer and writer. Learn about his early life, career, roles, awards and personal life.
- Actor, Producer, Writer
- April 30, 1975
- 1 min
Learn about the life and career of Johnny Galecki, a Belgian-born American actor who starred in Roseanne, The Big Bang Theory and other movies and shows. Find out his age, height, family, hobbies, awards and trivia.
- April 30, 1975
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May 27, 2021 · Learn how Johnny Galecki went from playing Rusty Griswold in Christmas Vacation to Leonard Hofstadter in The Big Bang Theory, with stops at Roseanne, Broadway, and more. Discover his early roles, his breakthrough roles, and his challenges and achievements along the way.
Oct 3, 2022 · Exclusive: When The Big Bang Theory’s Kaley Cuoco and Johnny Galecki Fell in Love. The stars tell all about their relationship off-camera and on in an excerpt from a rich new oral history now...
- Jessica Radloff
Apr 30, 1975 · Learn about Johnny Galecki, the actor who starred in "Roseanne" and "The Big Bang Theory". Find out his birth date, awards, partners, credits, photos and news.
Jan 3, 2020 · Find out what the actor is doing now that his hit comedy series has ended, from reprising his role on The Conners to producing a new show. Learn about his personal projects, his fondness for his former co-stars, and his future plans.
