Boyish character actor and occasional director who has had leading parts on stage, in films and TV. Perhaps best known for the role of Larry Appleton on the long-running comedy series "Perfect Strangers" (ABC, 1986-93), Linn-Baker's character found his neat and orderly life interrupted by the arrival of a distant foreign cousin, Balki, memorably played by Bronson Pinchot.Linn-Baker began his career on the stage, coming to New York after working three seasons with the Yale Repertory Theater. He made his NY stage debut as Bertram in a New York Shakespeare Festival production of "All's Well That