The acting has drawn mixed reviews. While Emery writes that the film is "filled with awful acting and even worse rock & roll dance numbers", when it comes to a major character, "Dr. Frankenstein was never slimier than when he was portrayed by Donald Murphy". He describes Oliver as "part mad scientist, part Ivy League jerk" and says that he is "one of the more lecherous and humorous characters to bear the legendary doctor's name". Senn is also favorable toward Murphy's acting, writing that he "gives a hearty performance as the arrogant, brilliant Oliver. He imbues his scornful scientist with a superior air and a wealth of passion". On the other hand, "hero John Ashley's toneless playing adds to the production's woes. His deadpan delivery and immobile countenance are so stiff you could light a match on them".