Tim Curry
Tim Curry is an English actor known for his role of Pennywise in the "It" TV show from the nineties. In this musical movie he plays the mad scientist Dr. Frank-N-Furter, an eccentric but sweet transsexual from Transylvania.
Susan Sarandon
Susan Sarandon is an American actress known for her roles in the movies "Thelma and Louise" and "Dead Man Walking". In this movie she plays the heroine of the story, an innocent girl from Texas who just wants to marry her boyfriend, but who goes to a transformation and learns to express herself freely in the castle.
Peter Hinwood
Peter Hinwood is a former English actor who is best know for his role of Rocky Horror. Rocky Horror is Frank's creation, his version of a Frankenstein's monster, but created to please the eye more efficiently. A creation created for sexual pleasure, Rocky is also intelligent and emotional.
Richard O'Brien
Richard O'Brien is an English actor and writer who wrote the musical show and the book "The Rocky Horror Show" on which the movie was based. In the movie, he appears in the role of Riff Raff, Frank's creepy servant, who is revealed to be the one who pulled the threads. He reveals that he and Magenta are actually aliens from the Transsexual Transylvania planet.