Sean was born in Washington D.C. The youngest of four, he was raised in Silver Spring/Olney Maryland and graduated from Sherwood High School. He moved west and graduated from UCLA four years later. Like most actors, he worked as a waiter while studying and performing at the famed Groundling Theater. His break came doing commercials and his first film, The People Under the Stairs. Sean works steadily in film, television, and on stage. He also earns money as a television and film writer. He's married and has two daughters.


Best known for the famous and oft-played "Got Milk?" commercial involving a history museum employee who can win a radio contest by guessing correctly who shot Alexander Hamilton in the famous duel. He is unable to say the correct answer of "Aaron Burr" because his mouth is full of peanut butter and he is out of milk.