"The Prediction," the tenth episode of THRILLER, became the only first season entry to feature host Boris Karloff in an acting role. As phony stage mentalist Clayton Mace, Karloff begins to have real flashes of tragic events for others before they happen, but cannot foresee his own fate. Playing Mace's assistant, Audrey Dalton would reappear in two future episodes ("Hay-Fork and Bill Hook" and "The Hollow Watcher"), again working with Karloff six years later in an episode of The Wild Wild West ("The Night of the Golden Cobra"). Abraham Sofaer has a sympathetic role as Mace's manager (and a less sympathetic one in "The Weird Tailor"). Actor Alan Caillou would also reappear twice more ("Hay-Fork and Bill Hook" and "The Specialists"), while also scripting a pair ("H-F and BH" and "The Terror in Teakwood"). Director John Brahm does what he can with a script that comes off as more a crime entry than horror. Brahm had already helmed "The Watcher," going on to do some of the best remembered shows.