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)
Al Molinaro Al Delvecchio Al Delvecchio See fewer	The Odd Couple (1970)
Jack Dodson Dr. Mickey Malph Dr. Mickey Malph See fewer	The Getaway (1972)
Christopher Norris Sheila Sheila See fewer	Airport 1975 (1974)
Paul Linke Bruiser Bruiser See fewer	Parenthood (1989)
Debbie Chaffin Fonzie's Girl in Green Sweater (uncredited) Fonzie's Girl in Green Sweater (uncredited) See fewer	Barnaby Jones (1973)
Sally Hightower Fonzie's Girl in Beige Sweater (uncredited) Fonzie's Girl in Beige Sweater (uncredited) See fewer	The Burning Zone (1996)
Heather Warren Fonzie's Girl in Red Sweater (uncredited) Fonzie's Girl in Red Sweater (uncredited) See fewer	Happy Days (1974)