Name	Known for
Robert Walden Joe Waters Joe Waters See fewer	Brothers (1984)
Paul Regina Cliff Waters Cliff Waters See fewer	Brothers (1984)
Brandon Maggart Lou Waters Lou Waters See fewer	Dressed to Kill (1980)
Robin Riker Kelly Hall (credit only) (as Robin Riker-Hasley) Kelly Hall (credit only) (as Robin Riker-Hasley) See fewer	Brothers (1984)
Hallie Todd Penny Waters Penny Waters See fewer	Lizzie McGuire (2001)
Philip Charles MacKenzie Donald Maltby Donald Maltby See fewer	Brothers (1984)
Candy Clark Candy Candy See fewer	American Graffiti (1973)
Julie Gregg Sally Sally See fewer	The Godfather (1972)
Cynthia Kaye Judy Judy See fewer	Brothers (1984)
Michael Russo Mario Mario See fewer	Brothers (1984)
Steve Mittleman Ron Ron See fewer	Roxanne (1987)
Timothy Williams Kevin Kevin See fewer	Tell (2014)
Matthias Hues Thor Thor See fewer	Puppet Master: The Littlest Reich (2018)
Jamie McMurray Robert Robert See fewer	Defense Play (1988)
Sanders Cupac Frank Frank See fewer	Who's That Girl (1987)
Mary Ann Pascal Sam Sam See fewer	MacGyver (1985)