Brian Bonsall, who played Andy Keaton in "Family Ties," pleaded guilty to third-degree assault in a case involving his girlfriend and was sentenced to two years' probation, prosecutors in Boulder, Colo., said.
Three other charges against Bonsall, 25, were dismissed under a plea agreement entered on Friday. He was arrested in March after his girlfriend told police he poured an alcoholic drink on her face while she slept, put her in a choke hold and threw her onto a bed when she tried to leave.
Bonsall told investigators he pushed her down in self-defense after she cut his arm and face with a steak knife. She denied the claim and wasn't charged in the case.
Bonsall's lawyer, Paul McCormick, said Bonsall, who is working in construction and playing in a band, has gotten back together with his girlfriend and they are in couples counseling.