The lead characters were Darrin and Samantha Stephens. Samantha was played by Elizabeth Montgomery. Darrin was played by Dick York from 1964 to 1969. Because of illness, Dick York left the show and was replaced by Dick Sargent who played Darrin from 1969 to 1972. Samantha's mother Endora was played by Agnes Moorehead who disliked Darrin and often made things difficult for him.