Johnny Galecki's Main TV Roles Show Character(s) The Big Bang Theory Leonard Hof… Roseanne David Healy American Dreamer Danny Nash Billy David

Main Movie Roles 2009 - Table for Three 2008 - Hancock 2004 - Chrystal 2003 - Bookies 2001 - Vanilla Sky 2000 - Bounce 1997 - I Know What You Did Last Summer 1997 - Suicide Kings 1997 - Bean 1989 - National Lampoon's Christmas Vacation 1989 - Prancer 1988 - A Night in the Life of Jimmy Reardon

BIOGRAPHY:

John Mark "Johnny" Galecki (born April 30, 1975) is an American actor. He is best known for his roles as David Healy in the sitcom Roseanne, Rusty Griswold in National Lampoon's Christmas Vacation, and as Leonard Hofstadter, Ph.D, in the CBS sitcom The Big Bang Theory.


TRIVIA:

• Has a sister, Allison Galecki.
• Brother of Nick Galecki.
• By age 7, he began performing in such prestigious theater productions as "Fiddler on the Roof", "Pippin" and "Galileo", opposite 'Brian Dennehy' (qv) at The Goodman Theater in Chicago.
• Born in Belgium where his father was stationed while serving in the US Air Force. He moved to Chicago when he was 3 years old.
• In 1991, he starred in the made-for-TV movie _Backfield in Motion (1991) (TV)_ (qv), which co-starred the production team of 'Roseanne' (qv) and 'Tom Arnold (I)' (qv). The next year, Galecki joined the cast of _"Roseanne" (1988)_ (qv) as Darlene's sensitive and put-upon boyfriend, David.
• Star/producer/writer 'Roseanne' (qv) of _"Roseanne" (1988)_ (qv) praises Galecki's "great vulnerability".
• At the age of 11, he received a Joseph Jefferson citation nomination for his critically-acclaimed performance as John Henry in The Member of the Wedding.
• Close friend of 'Sara Gilbert' (qv).