 | Roy Scheider als Police Chief Martin Brody |
 | Robert Shaw als Quint |
 | Richard Dreyfuss als Matt Hooper |
 | Lorraine Gary als Ellen Brody |
 | Murray Hamilton als Mayor Larry Vaughn |
 | Carl Gottlieb als Meadows |
 | Jeffrey Kramer als Hendricks |
 | Susan Backlinie als Chrissie |
 | Jonathan Filley als Cassidy |
 | Ted Grossman als Estuary Victim |
 | Chris Rebello als Michael Brody |
| Jay Mello als Sean Brody |
 | Lee Fierro als Mrs. Kintner |
| Jeffrey Voorhees als Alex Kintner |
 | Craig Kingsbury als Ben Gardner |
 | Phil Murray als Mr. Taft |
 | Robert Nevin als Medical Examiner |
 | Peter Benchley als Interviewer |
 | Fritzi Jane Courtney als Mrs. Taft (uncredited) |
| David Engelbach als Research Assistant (uncredited) |
 | Dorothy Fielding als Girl in Music Store (uncredited) |
| Joe La Creta als Barwood (uncredited) |
 | Belle McDonald als Mrs. Posner (uncredited) |
 | Joseph Oliveira als Swimmer (uncredited) |
 | Beverly Powers als Topless Swimmer (uncredited) |
 | Ayn Ruymen als Nurse (uncredited) |
| Christopher Sands als Lifeguard (uncredited) |
 | Steven Spielberg als Amity Point Lifestation Worker (voice) (uncredited) |
 | Rex Trailer als Scout Master (uncredited) |
| Steven Spielberg | Director |
| Peter Benchley | Novel |
| Carl Gottlieb | Screenplay |
| David Brown | Producer |
| Richard D. Zanuck | Producer |
| John Williams | Original Music Composer |
| Verna Fields | Editor |
| Joe Alves | Production Design |
| John M. Dwyer | Set Decoration |
| Thomas J. Wright | Art Department Coordinator |
| Robert A. Mattey | Special Effects |
| Ted Grossman | Stunts |
| Peter Benchley | Screenplay |
| Bill Butler | Director of Photography |
| Shari Rhodes | Casting |
| Del Armstrong | Makeup Artist |
| Verne Caruso | Hairstylist |
| Jim Gillespie | Makeup Artist |
| James Fargo | Unit Production Manager |
| Thomas J. Wright | Production Illustrator |
| William C. Carruth | Assistant Editor |
| Jeff Gourson | Assistant Editor |
| Charlsie Bryant | Script Supervisor |
| Robert L. Hoyt | Sound |
| John R. Carter | Sound |
| Werner Keppler | Sculptor |
| Dick Ziker | Stunt Double |
| Barbara Bass | Second Assistant Director |
| Tom Joyner | First Assistant Director |
| Michael Chapman | Camera Operator |
| Ron Taylor | Camera Operator |
| Valerie Taylor | Camera Operator |
| William S. Gilmore | Production Executive |
| Fred Zendar | Technical Advisor |
| Leonard J.V. Compagno | Thanks |
| Shari Rhodes | Location Casting |
| Lynn Murphy | Production Assistant |
| Dick Warlock | Stunt Double |
| Howard Curtis | Stunts |
| Richard E. Butler | Stunts |
| Ted Grossman | Stunt Coordinator |
| Hubie Kerns Jr. | Stunts |
| Preston Peterson | Stunts |
| Denise Cheshire | Stunts |
| Ron Veto | Stunts |
| Fred Zendar | Stunts |
| Frank James Sparks | Stunt Double |
