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)
Anson Williams Potsie Weber Potsie Weber See fewer	Happy Days (1974)
Erin Moran Joanie Cunningham Joanie Cunningham See fewer	Joanie Loves Chachi (1982)
Al Molinaro Al Delvecchio Al Delvecchio See fewer	The Odd Couple (1970)
Scott Baio Chachi Arcola Chachi Arcola See fewer	Superbabies: Baby Geniuses 2 (2004)
Lynda Goodfriend Lori Beth Allen (credit only) Lori Beth Allen (credit only) See fewer	Pretty Woman (1990)
Tom Bosley Howard Cunningham Howard Cunningham See fewer	Happy Days (1974)
Ted McGinley Roger Phillips Roger Phillips See fewer	Revenge of the Nerds (1984)
Wil Albert Mr. Bellgoodie Mr. Bellgoodie See fewer	Frost/Nixon (2008)
Merie Earle Mrs. Frick - Teacher Mrs. Frick - Teacher See fewer	Crazy Mama (1975)
Raymond Guth Mr. Gampolo Mr. Gampolo See fewer	Silver Streak (1976)
Harris Kal Bobby Bobby See fewer	Happy Days (1974)
Denis Mandel Eugene Belvin Eugene Belvin See fewer	Knots Landing (1979)
Kevin Rodney Sullivan Tommy Tommy See fewer	How Stella Got Her Groove Back (1998)