After a successful career as a Broadway actor, he starred in several films including Scarface, Ghostbusters II and Rush Hour 2. He was nominated for an Emmy in 1996 for his role as Jerome Belasco in the NBC sitcom Frasier.
He was born in Los Angeles and he studied acting at UCLA.
He is widely recognized for his work in Star Trek: Deep Space Nine, 24, and Buffy the Vampire Slayer.
He was married to Gwen Welles until she passed away in 1993.
In 2009, he starred in a musical-documentary film called The People Speak, which was based off of Howard Zinn's influential book A People's History of the United States.