Assignment Terror ()

Synopsis:
Michael Rennie (Fame : The Day the Earth Stood Still) plays an alien intent on taking over earth. He kidnaps 2 mad scientists and awakens the monsters of the world Dracula, Frankenstein, Werewolf and the Mummy.
The Werewolf and Frankenstein Monster is played by Paul Naschy (Curse of the Devil, Fury of the Wolfman). Mr. Naschy played the werewolf more times then anyone in film history.
This was the last movie for Michael Rennie who died suddenly, and another actor had to provide his voice.
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