Robert Duncan McNeill was born in Raleigh, North Carolina. He studied at The Juilliard School in New York City. He is best known for his role in Star Trek: Voyager, where he played Lieutenant Tom Paris and also debuted as a director.

He also has appeared in numerous TV series, including All My Children, Homefront, L.A. Law, and Murder, She Wrote.

Robert Duncan McNeill is married and has a daughter and two sons.