Elayne Heilveil appears uncredited as Alice, one of the hospital's patients.
Sharon Farrell claimed that the poster of her on the cover, with the title of the movie, The Fifth Floor, was on the wall on the fifth floor of the Playboy Building.
Although Sharon Farrell does not portray the main character (Dianne Hull does), her image alone adorns the movie poster, making her appear to be the main character.