The Munsters come to America to search for Herman's brother-in-law Norman Hyde, only to find out that he has turned himself into Brent Jekyll, who is running for congress, and Grandpa must make a formula to change Norman back.
as Herman Munster
as Lily Munster
as Grandpa
as Marilyn Hide (Munster)
as Eddie Munster
as Detective Warshowski
as Larry Walker
as Detective Cartwell
as Mrs. Dimwitty
as Brent Jeckyll
as Norman Hyde
as Elsa Munster Hyde
as Mrs. Pearl
as One-eyed Man
as Villager
as Restaurant Guest
as Mrs. Walker
as Restaurant Guest
as Restaurant Guest
as Restaurant Guest
as Mrs. Waffer
as Mrs. Hersby
as Maitre d'