Verified biography · current role
Johnny Galecki Biography
Johnny Galecki is an American actor and producer best known as Leonard Hofstadter in The Big Bang Theory and David Healy in Roseanne and The Conners. In 2026 he announced his return to acting in the Chicago production of Kowalski after a seven-year break.
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About Johnny Galecki
Full name: John Mark Galecki
Johnny Galecki is an American actor and producer best known as Leonard Hofstadter in The Big Bang Theory and David Healy in Roseanne and The Conners. In 2026 he announced his return to acting in the Chicago production of Kowalski after a seven-year break.
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Questions about Johnny Galecki
When is Johnny Galecki's birthday?
Johnny Galecki was born on April 30, 1975.
Sources: Wikidata
How old is Johnny Galecki?
Calculated from his verified birth date.
Sources: Wikidata
Is Johnny Galecki returning to acting?
Yes. He announced a 2026 stage return as Tennessee Williams in Kowalski in Chicago.
Sources: TheWrap
Who did Johnny Galecki play in The Big Bang Theory?
He played experimental physicist Leonard Hofstadter.
Sources: Television Academy
Was Johnny Galecki nominated for an Emmy?
Yes. He was nominated for Lead Actor in a Comedy Series in 2011.
Sources: Television Academy
Who did Johnny Galecki play in Roseanne?
He played David Healy and later reprised the role in The Conners.
Sources: Television Academy · Television Academy
Is Johnny Galecki married?
Yes. Architectural Digest identified Morgan Galecki as his wife in a 2024 profile.
Sources: Architectural Digest