During the last season of the iconic family sitcom "The Brady Bunch," the producers tried to freshen up the storylines by introducing a new character: Cousin Oliver, played by actor Robbie Rist. Oliver's six-episode stint was brief but memorable.

"I was really obsessed with the 1930s monster movies when I was a young guy, and at a certain point I started saying, 'I want to be in a monster movie, I want to be in a monster movie, I want to be in a monster movie,'" Rist says. "Both my parents said, 'Well take the little guy on an audition, and he will not want to do this.'"

To everyone's surprise, Rist landed the "Brady Bunch" gig.