Name	Known for
Ron Howard Richie Cunningham Richie Cunningham See fewer	Arrested Development (2003)
Marion Ross Marion Cunningham Marion Cunningham See fewer	Superhero Movie (2008)
Anson Williams Potsie Weber Potsie Weber See fewer	Happy Days (1974)
Tom Bosley Howard Cunningham Howard Cunningham See fewer	Happy Days (1974)
Henry Winkler Arthur 'Fonzie' Fonzarelli Arthur 'Fonzie' Fonzarelli See fewer	The Waterboy (1998)
Don Most Ralph Malph (as Donny Most) Ralph Malph (as Donny Most) See fewer	Happy Days (1974)
Laurette Spang Arlene Holder Arlene Holder See fewer	Battlestar Galactica (1978)
Reta Shaw Mrs. McCarthy Mrs. McCarthy See fewer	Mary Poppins (1964)
Erin Moran Joanie Cunningham Joanie Cunningham See fewer	Joanie Loves Chachi (1982)
Beatrice Colen Marsha Simms Marsha Simms See fewer	Wonder Woman (1975)
Tita Bell Trudy Trudy See fewer	Guiding Light (1952)
Jean Fraser Sandy Hauser Sandy Hauser See fewer	S.W.A.T. (1975)
Julia Louis-Dreyfus Girl Throwing Confetti (uncredited) Girl Throwing Confetti (uncredited) See fewer	Seinfeld (1989)
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)