American writer, director, actor. Mitchell, the son of a U.S. Army general and a Scottish mother, grew up on various army bases, including Berlin; later the family lived in Colorado Springs, Colorado, where he attended a Catholic school.

Since the mid-1980s, he has worked as a theatre actor and director in New York City and played small roles in television and film productions. Among other things, he directed a play by Tennessee Williams. From 1991, he appeared in the original Broadway production of Marsha Norman and Lucy Simon's musical adaptation of The Secret Garden, which won several Tony Awards.