Roy Scheider as Brody

Robert Shaw as Quint

Richard Dreyfuss as Hooper

Lorraine Gary as Ellen Brody

Murray Hamilton as Vaughn

Carl Gottlieb as Meadows

Jeffrey Kramer as Hendricks

Susan Backlinie as Chrissie

Jonathan Filley as Cassidy

Ted Grossman as Estuary Victim

Chris Rebello as Michael Brody

Jay Mello as Sean Brody

Lee Fierro as Mrs. Kintner

Jeffrey Voorhees as Alex Kintner

Craig Kingsbury as Ben Gardner

Phil Murray as Mr. Taft

Robert Nevin as Medical Examiner

Peter Benchley as Interviewer

Fritzi Jane Courtney as Mrs. Taft (uncredited)

David Engelbach as Research Assistant (uncredited)

Dorothy Fielding as Girl in Music Store (uncredited)

Joe La Creta as Barwood (uncredited)

Belle McDonald as Mrs. Posner (uncredited)

Joseph Oliveira as Swimmer (uncredited)

Beverly Powers as Topless Swimmer (uncredited)

Ayn Ruymen as Nurse (uncredited)

Christopher Sands as Lifeguard (uncredited)

Steven Spielberg as Amity Point Lifestation Worker (voice) (uncredited)

Rex Trailer as Scout Master (uncredited)

Chris Anastasio as Out of Towner (uncredited)

Henry Carreiro as Felix (uncredited)

Robert Carroll as Mr. Polk (uncredited)

Edward Chalmers Jr. as Mr. Denherder (uncredited)

David Daniel as Hippie on Beach (uncredited)

Cyprian R. Dube as Mr. Posner (uncredited)

Wally Hooper Jr. as Harry (uncredited)

Duncan Inches as Townsperson (uncredited)

John Moffet as At Bonfire with Mustache (uncredited)

John Searle as Converted Man (uncredited)

Hershel West as Salvatore (uncredited)

Dick Young as Pratt (uncredited)