MutatorHorrorScience Fiction33 Play Trailer Play Trailer Mutator33HorrorScience Fictionthumb_upthumb_downMutatorMay 15, 1989Directed byJohn R. BoweyA beast gets loose in a laboratory, killing all in it's way. A former scientist, now working as a custodian tries to stop it.US content warning scientist Last Updated: 6 days ago Request Update CastBrion JamesDavid AllenCarolyn Ann ClarkTaylorMilton Raphael MurillTraversBrian O'ShaughnessyAxelrodEmbeth DavidtzJenniferGreg LatterMurphyTrailerMutator Movie Trailer - (VHS Promo Copy) Image Gallery RecommendedMarty Feldman: Six Degrees of SeparationRoyalteenDark SeductionThe Forbidden Legend: Sex & Chopsticks 2Puss n' TootsThe Kissing Booth 3LEGO Scooby-Doo! Haunted HollywoodGoing for GoldMea CulpaPretty Guardian Sailor Moon Eternal the Movie Part 2HelloRiver WildDrink Slay LoveL♡DK: Two Loves Under One RoofMan