Paul David McCrane is an American film, television and theatre actor, as well as a television director and singer. He is perhaps best known for his portrayal of Montgomery MacNeil in the 1980 film Fame, Emil Antonowsky in RoboCop and Robert Rocket Romano on the NBC medical drama television series ER.
McCrane was born in Philadelphia, Pennsylvania, the son of Eileen C. , a nurse, and James J. McCrane, Jr., an actor and writer. He has a brother, Jim, and three sisters, Maureen, Barbara, and Deirdre. His family moved to Richboro, Pennsylvania, where he lived until he moved to New York City after graduating from Holy Ghost Preparatory School.
Source: Wikipedia