Mark Lindsay Chapman (born 8 September 1954, London) is an English film and television actor.His credits include: Max Headroom, Dallas (as Brett Lomax),Falcon Crest (as Charley St. James), Baywatch, Murder, She Wrote, Lois and Clark, JAG, Charmed, Roland Burke in The Young and the Restless, Dr. Anton Arcane (1990–1993) in Swamp Thing, and Nick Hopewell in The Langoliers.