All in all, Dolphy played four roles in this film. First is Omeng, the aging scientist. Second is Satanasia, the devil. Third is Gregory, Omeng's younger self and alterego. And last is Anghelito, Omeng's guardian angel.
When Steve (Babalu) gatecrashed in one of Student Canteen's episode during his search for his missing master, he mistakenly claimed that he was in the program Kahapon Lamang. Eddie Illarde, one of Student Canteen's host present in the film was also hosted Kahapon Lamang.