Season 6

Ron Howard

Richie Cunningham

27 episodes

Henry Winkler

Arthur Fonzarelli

27 episodes

Tom Bosley

Howard Cunningham

27 episodes

Marion Ross

Marion Cunningham

27 episodes

Anson Williams

Potsie Weber

27 episodes

Don Most

Ralph Malph

27 episodes

Erin Moran

Joanie Cunningham

27 episodes

Al Molinaro

Al Delvecchio

27 episodes

Lynda Goodfriend

7 episodes

Jason Evers

3 episodes

Richard Moll

Eugene

2 episodes

Suzi Quatro

2 episodes

Cliff Emmich

, Candy Man

2 episodes

Gino Conforti

Sticky,

2 episodes

Leon Askin

1 episode

Robin Williams

Mork

1 episode

David Keith

1 episode

David Ketchum

1 episode

Phillip Pine

1 episode

Karen Austin

1 episode

Ray Girardin

1 episode

Eddie Mekka

1 episode

Michael Dudikoff

1 episode

Vito Scotti

1 episode

James Randi

1 episode

Bruce Weitz

1 episode

Allan Rich

1 episode

Michael McKean

1 episode

Eddie Fontaine

1 episode

Ed Peck

1 episode

Scott Baio

1 episode

Pat Morita

Arnold

1 episode

Penny Marshall

Laverne DeFazio

1 episode

Cindy Williams

Shirley Feeney

1 episode

David L. Lander

Andrew 'Squiggy' Squiggmann

1 episode

Jerry Paris

Director

27 episodes

David Ketchum

Writer

1 episode

Susan Harris

Writer

1 episode

Ron Leavitt

Writer

1 episode

Edward K. Milkis

Producer

27 episodes

Garry Marshall

Producer

27 episodes

Robert G. Hager

Director of Photography

1 episode

Ed Cotter

Editor

1 episode

Bill Brame

Editor

1 episode

Ben Lanzarone

Music

2 episodes