Jack Black was born Thomas Jacob Black in Santa Monica, California, to Judith Love (Cohen) and Thomas William Black, both satellite engineers. He is of British-German (father) and Russian Jewish (mother) ancestry. Black attended the University of California at Los Angeles. While at UCLA, he was a member of Tim Robbins's acting troupe and it was through this collaboration that led to his 1992 film debut in Bob Roberts (1992). Although he was just a background voice in his first film, Jack's appearances in such television shows as The X-Files (1993), his breakthrough performance in High Fidelity (2000), and his rock-comedy band, Tenacious D, have created an ever-growing cult following.

Tanya Haden (14 March 2006 - present) ( 2 children)

Trivia

Member of the band Tenacious D.
Filmed a television pilot called Heat Vision and Jack (1999) co-starring Ron Silver, and Christine Taylor, and directed by Ben Stiller. The show was a parody of Knight Rider (1982), as well as other action/ adventure shows, and featured a talking motorcycle voiced by Owen Wilson.
Discovered he could act when he played a game of Freeze after a Passover seder.
Revealed on an Australian late night variety show that his favorite KISS rock song is 1982's "I Love it Loud," where he began singing parodied lyrics to the first verse.
Often competes for the same parts with Philip Seymour Hoffman. On the School of Rock (2003) DVD audio commentary, he jokingly calls Hoffman "my nemesis."
Attended Crossroads High School for the Arts and Sciences.
Is a member of, what the media refers to as the Frat Pack along with Will Ferrell, Ben Stiller, Vince Vaughn, Owen Wilson, Steve Carell and Luke Wilson. The Frat Pack name is a reference to the film Old School (2003), which features Vaughn, Ferrell, and Wilson, due to the wide number of films featuring the seven actors. Black's "Frat Pack" films include The Cable Guy (1996), Envy (2004), and Anchorman: The Legend of Ron Burgundy (2004).
Starred in a management training film "Manager of the Year - Effective Listening (1987)" as a teenager who tells his father that the family car has been stolen.

[on filming the love scene in Shallow Hal (2001)] It was just strictly professional. It was like a doctor or a carpenter plying his trade. I received no pleasure whatsoever . . . I requested 32 takes for the perfection of the craft.
Never for a second did I think of myself as the sexiest guy in the world. When I was a kid, I thought I was the strongest man in the world. Then, the fastest runner and then the smartest person in the world. One by one my delusions got shut down. Now I just see myself as the lamest guy in the world.
[on co- starring with Gwyneth Paltrow for the first time in Shallow Hal (2001)] You know, I WAS a little afraid that she would fall head-over-heels in love with me, like she did [when co-starring] with Brad Pitt in Se7en (1995).
I'd just like to be in films that I would like to see. I think of myself as an entertainment arsenal. Like I have my acting bazooka and my music machete. And you don't know what I'm going to come at you with.
I was a little worried about working with kids. I wanted to make sure we didn't approach it tip-toeing around the stuff that would normally be funny, or make it gentle, rock-a-bye-baby bullshit.
I'm no Matt Damon, my goal was to be a character actor. I never thought I would get leads the way that I've been able to in the past two years.
I'm hungry for rock 24/7.
The movie This Is Spinal Tap (1984) rocked my world. It's for rock what The Sound of Music (1965) was for hills. They really nailed how dumb rock can be.
I'd rather be the king of kids, than the prince of fools.