BOULDER, Colo. -- The man who played Michael J. Fox's brother on "Family Ties" when he was a child is due in Boulder court Wednesday, accused of violating his probation after assaulting his girlfriend.

Brian Bonsall, 26, played Andy Keaton on the long-running television show from 1986 to 1989. He also starred as Alexander Rozhenko in "Star Trek: The Next Generation" on seven episodes between 1992 and 1994.

Last year, he was charged with assaulting his girlfriend and was sentenced to probation. Now, he's accused of violating his probation by failing to pay for domestic-violence classes, missing daily alcohol checks and testing positive for alcohol, according to published reports.

Bonsall is now in a punk rock band called Thruster, where he plays drums. The group has a MySpace page that says "Brian did a little acting tin the eighties."

Read more about the story in the Boulder Daily Camera.