Full Cast — Happy Days (1974–1984)
Henry Winkler
Arthur Fonzarelli
Tom Bosley
Howard Cunningham
Marion Ross
Marion Cunningham
Anson Williams
Potsie Weber
Erin Moran
Joanie Cunningham
Ron Howard
Richie Cunningham
Don Most
Ralph Malph
Al Molinaro
Al Delvecchio / Al
Scott Baio
Chachi Arcola / Chachi
Lynda Goodfriend
Lori Beth / Lori Beth Allen
Cathy Silvers
Jenny Piccalo
Ted McGinley
Roger Phillips
Scott Mitchell Bernstein
Melvin Belvin
Hillary Horan
Girl in Maroon Scarf (uncredited) / Girl in Red Scarf (uncredited) / Daphne / Birdhouse Girl in Green (uncredited) / Brunette in Orange Skirt (uncredited) / Girl Playing Drums (uncredited) / Girl Dancing with Ralph (uncredited) / Majorette (uncredited) +20 more
Linda Purl
Ashley Pfister / Gloria
Pat Morita
Arnold
Crystal Bernard
K.C. Cunningham
David Ketchum
Kevin Rodney Sullivan
Tommy
Billy Warlock
Flip Phillips
Heather O'Rourke
Heather Pfister
Ed Peck
Gavan O'Herlihy
Chuck Cunningham
Suzi Quatro
Ellen Travolta
Louisa Arcola
Penny Marshall
Laverne DeFazio
Cindy Williams
Shirley Feeney
Warren Berlinger
DJ Charlie The Prince / Army Sgt. Betchler / Mr. Vanburen / Movie Director / Dr. Logan
Teddi Siddall
Scott Marshall
Kathleen Marshall
Cynthia Windham
Teen Student / Teen at Arnold's
Heidi Bohay
Jason Evers
Dick Van Patten
Arthur Batanides
Frances Bay
Grandma Nussbaum
James Daughton
Rance Howard
Mr. Burkhart
Roz Kelly
Talia Balsam
Tita Bell
Trudy
Alice Nunn
Michael Pataki
Jack Dodson
Misty Rowe
Wendy
Richard Moll
Eugene
Robin Williams
Mork
Rita Wilson
Lyle Waggoner
Frederick Hamilton
Marla Pennington
Ronnie Schell
Marc McClure
Ralph Wilcox
Ray Girardin
Eddie Mekka
Marcia Lewis
Michael Dudikoff
Peter Hobbs
Jack Baker
Pamela Dunlap
Martin Ferrero
Clint Howard
Raymond Guth
Pat O'Brien
Randolph Roberts
Chuck Cunningham
Gino Conforti
Sticky
Joe Mays
Cliff Emmich
Candy Man
Paul Linke
Lew Horn
Marjorie Bennett
Mrs. Harrison / Lady
Robert Casper
Orville / Customer
Meridith Baer
Judy
Jillian Kesner
Lorraine / Patty Petralunga