Moll played the role of Big Ben in the 1986 horror film "House". He earned a Saturn Award nomination for the role. Moll made an appearance in the first episode of ' as Slan Quince, the villain who reunites Connor MacLeod with his kinsman and the show's protagonist, Duncan MacLeod. Moll made a guest appearance on "Babylon 5" in the episode "Hunter, Prey" as a lurker criminal who was holding a VIP hostage, and as a gangster on "Married... with Children". Moll made another guest appearance in the TV series ', playing the cyclops in episode two, "Eye of the Beholder".