Born Charles Goddard on July 24, 1936 in Lowell, Massachusetts. He grew up in Scituate, Massachusetts, where his father owned a five-and-ten. At Holy Cross, the head of the dramatic society encouraged him to become an actor and soon Goddard was off to Manhattan, attending the American Academy of Dramatic Arts. He worked with stock companies and made guest appearances on TV before landing regular parts on TV series of his own. Throughout his acting career, in between jobs, Goddard has worked with children, from Head Start programs in California to Sloan-Kettering Cancer Center in New York City. His daughter Melissa is a producer; the two co-wrote 1992's "Big Girls Don't Cry...They Get Even", a film about Mark's work with "at-risk" kids.
Mark worked hard at learning
to handle a gun professionally and do tricks with it. In the
center shot he demonstrates for the benefit of a lady admirer.