Made his Broadway debut in 1985, originating the role of Don Carney in Neil Simon's Biloxi Blues, which costarred Matthew Broderick
Breakout role was hypochondriacal high-school student Cameron Frye in the 1986 Broderick comedy Ferris Bueller's Day Off
Before landing a part on Michael J
Fox's hit sitcom Spin City in 1996, he starred in several short-lived, early-'90s TV comedies, including Fox's The Edge, CBS' Daddy's Girls and the WB's Muscle
Was nominated in 2005 for the Washington Theatre Awards Society's Helen Hayes Award for outstanding lead actor, nonresident production, for his performance as Leo Bloom in the Tony-winning The Producers