Richard O'Brien (born Richard Timothy Smith) is a British actor and writer best known for creating The Rocky Horror Show, a stage musical that was subsequently turned into the cult film The Rocky Horror Picture Show. O'Brien played the character of Riff Raff in both the original stage production and the film. He attempted to continue the success of Rocky Horror by penning a sequel. After several drafts, the script was ultimately filmed as Shock Treatment (which was not well-recieved at the time but has since gained a cult following of its own).
- The Rocky Horror Picture Show (1975): Riff Raff.
- Jubilee (1978): John Dee.
- Flash Gordon (1980): Fico.
- Shock Treatment (1981): Dr. Cosmo McKinley.
- Robin of Sherwood (1986): Gulnar.
- Spice World (1997): Damien.
- Ever After (1998): Pierre Le Pieu.
- Dark City (1998): Mr. Hand.
- Dungeons & Dragons (2000): Xilus.
- Phineas and Ferb (2007-2015): Lawrence Fletcher.