Assignment Terror on AllMovie

Spanish horror icon Paul Naschy wrote, co-produced and stars in (but did not direct) this sophomoric monster mash about a visitor from the dying planet Ummo (a badly-dubbed Michael Rennie, who's played better alien visitors) whose plan for dominating the people of Earth includes the reanimation of several legendary monsters, including the infamous werewolf Waldemar Daninsky (Naschy), the vampire Count de Meirhoff, the mummy Tao-Tet, and Frankenstein's monster... or at least something called "Franksollen" (Naschy again). Everything goes according to his sinister plan until Daninsky has a change of heart (as is his wont in most of Naschy's monster films). Originally titled The Man from Ummo, this cheesy production often aired on late-night TV as Dracula vs. Frankenstein (although the two legendary monsters never actually butt heads).