Mark Arnold (born May 23, 1957; Broomall, Pennsylvania) is an American actor most notable for his role as the Gavin Wylie on the ABC soap opera The Edge of Night. He also appeared on the serials Guiding Light, The Edge of Night, and Rituals and as Rob Coronol #2 on One Life to Live from 1987 to 1989. In 1985 Arnold also played Michael J. Fox's nemesis, Mick McAllister, in the movie Teen Wolf. He also played a major part in the Full Moon "classics" Trancers 4 and Trancers 5. In 2009 he played the title character's father in the movie April Showers.