Graduate of The Bronx High School of Science (a.k.a. Bronx Science), class of 1983.
Revealed his engagement to TV reporter Lisa Joyner on "The Tonight Show with Jay Leno" (1992) on Jan. 23, 2007.
He was asked to audition for the role of Chandler Bing on "Friends" (1994), while he was doing a play in London. His reading was videotaped by a British casting agent but the tape failed to arrive in the U.S. before the network had made its final decision.
His first child with his wife Sarah Trigger, a son Charlie Austin, was born on 27 June 2000 in Los Angeles.
He and his "Two and a Half Men" (2003) co-star Charlie Sheen also starred together in Hot Shots! (1991)
Received death threats via telephone while shooting "Two and a Half Men" (2003). [January 2010]
Daughter, Daisy, born 11 August 2009; adopted by Jon and Lisa shortly after.
Assumed temporary custody of his son, Charlie, after Charlie's mother, Sarah Trigger, was arrested in May 2009 on felony neglect charges. Charlie's two-year-old stepbrother was found with rope and cord marks around his neck.
Received a star on the Hollywood Walk of Fame [September 19, 2011].