Name	Known for
Ron Howard Richie Cunningham Richie Cunningham See fewer	Arrested Development (2003)
Henry Winkler Arthur 'Fonzie' Fonzarelli Arthur 'Fonzie' Fonzarelli See fewer	The Waterboy (1998)
Marion Ross Marion Cunningham Marion Cunningham See fewer	Superhero Movie (2008)
Anson Williams Potsie Weber Potsie Weber See fewer	Happy Days (1974)
Don Most Ralph Malph (as Donny Most) Ralph Malph (as Donny Most) See fewer	Happy Days (1974)
Erin Moran Joanie Cunningham Joanie Cunningham See fewer	Joanie Loves Chachi (1982)
Tom Bosley Howard Cunningham Howard Cunningham See fewer	Happy Days (1974)
Pat Morita Arnold Arnold See fewer	The Karate Kid (1984)
Jack Smith Jack Smith Jack Smith See fewer	On Moonlight Bay (1951)
Joseph Bova Burt Burt See fewer	Serpico (1973)
Melinda Naud Roberta (as Mindy Naud) Roberta (as Mindy Naud) See fewer	Happy Days (1974)
Hillary Horan Girl Playing Drum (uncredited) Girl Playing Drum (uncredited) See fewer	Young Doctors in Love (1982)
Lora Marie Taylor Girl in the Booth at Arnold's Soda Shop (uncredited) Girl in the Booth at Arnold's Soda Shop (uncredited) See fewer	X-Men: The Last Stand (2006)
Heather Warren Girl in Solid Green Scarf (uncredited) Girl in Solid Green Scarf (uncredited) See fewer	Happy Days (1974)