Johnny Galecki

John Mark Galecki is an American actor. In television, he played Leonard Hofstadter on The Big Bang Theory and David Healy in Roseanne and The Conners. Galecki also appeared... Wikipedia

• Born:  John Mark Galecki, April 30, 1975, Bree, Limburg, Belgium
• Age:  50 years
• Nationality:  American
• Occupation:  Actor
• Years active:  1987–present
• Children:  2
• Data source:  DuckDuckGo