Name	Known for
Henry Winkler Arthur 'Fonzie' Fonzarelli Arthur 'Fonzie' Fonzarelli See fewer	The Waterboy (1998)
Marion Ross Marion Cunningham Marion Cunningham See fewer	Superhero Movie (2008)
Scott Baio Chachi Arcola Chachi Arcola See fewer	Superbabies: Baby Geniuses 2 (2004)
Erin Moran Joanie Cunningham Joanie Cunningham See fewer	Joanie Loves Chachi (1982)
Anson Williams Potsie Weber Potsie Weber See fewer	Happy Days (1974)
Ted McGinley Roger Phillips Roger Phillips See fewer	Revenge of the Nerds (1984)
Tom Bosley Howard Cunningham Howard Cunningham See fewer	Happy Days (1974)
Arthur Batanides Referee Referee See fewer	Police Academy 4: Citizens on Patrol (1987)
Joe Nipote Leo Epps Leo Epps See fewer	Casper (1995)
Sean O'Grady Tiger Thompson Tiger Thompson See fewer	Savage Streets (1984)
James Start Frank Frank See fewer	Deck the Halls (2006)
Andy Steinfeld Reginald Bandini Reginald Bandini See fewer	The Flintstones (1994)
Peter Steinfeld Elijah Bandini Elijah Bandini See fewer	The Principal (1987)
Katherine Hittelman Patron at Arnold's (uncredited) Patron at Arnold's (uncredited) See fewer	Reform School Girls (1986)