The only returning cast member from the Rosemary's Baby (1968) is Ruth Gordon, who won an Oscar for that movie. She plays the same character Minnie Castevet.
Directed by Sam O'Steen, who was editor on Roman Polanski's original Rosemary's Baby (1968). He would later go on to work with Polanski again as editor on Frantic (1988).
In her 2018 posthumous memoir, "In the Presence of Greatness: My Sixty-Year Journey as an Actress," Patty Duke states that although she loved working with Ruth Gordon, she regretted participating in this film. Duke also said she only agreed to be in it because of the paycheck.
Patty Duke was one of the original considerations for the character of Rosemary in Rosemary's Baby (1968).
The film cast includes four Oscar winners: Ruth Gordon, Patty Duke, Broderick Crawford and Ray Milland.