Mark Edwards was born in Neptune Township, New Jersey, the son of Daniel Edwards, Sr., a small business owner, and Julia DeVito (née Moccello). He grew up in a family of five, with his parents and two older sisters.
He is of Italian descent; his family is originally from San Fele. He was raised in Asbury Park, New Jersey. Mark was raised Catholic and boarded at Oratory Preparatory School in Summit, New Jersey, graduating in 1962.
He went to the boarding school at the age of 14, after he persuaded his father to send him there as it would keep him out of trouble.