"A baby alligator is flushed down a toilet and survives by eating discarded lab animals that have been injected with growth hormones. The now gigantic animal escapes the city sewers and goes on a rampage, pursued by a cop and a big-game hunter."
Robert Forster
as David
Robin Riker
as Marisa
Michael V. Gazzo
as Chief Clark
Dean Jagger
as Slade
Sydney Lassick
as Gutchel
Jack Carter
as Mayor
Perry Lang
as Kelly
Henry Silva
as Brock
Bart Braverman
as Kemp
John Lisbon Wood
as Mad Bomber
James Ingersoll
as Helms
Robert Doyle
as Bill
Patti Jerome
as Madeline
Angel Tompkins
as Newswoman
Sue Lyon
as ABC Newswoman
Leslie Brown
as Young Marisa
Buckley Norris
as Bob
Royce D. Applegate
as Callan
Tom Kindle
as Announcer
Jim Brockett
as Gator Wrestler
Simmy Bow
as Seedy
Jim Boeke
as Shamsky
Stan Haze
as Meyer
James Arone
as Sloan
Peter Miller
as Sgt. Rice
Pat Petersen
as Joey
Micole Mercurio
as Joey's Mother
Frederick Long
as Sparks
Ed Brodow
as Ross
Larry Margo
as Stanley
Philip Luther
as Purdy
John F. Goff
as Ashe
Elizabeth Halsey
as Policewoman
Barry Chase
as Policeman 1
Richard Partlow
as Policeman 2
Jerado Decordovier
as Gator Vendor 1
Dick Richards
as Gator Vendor 2
Vincent De Stefano
as Gator Vendor 3
JoJo D'Amore
as Gator Vendor 4
Bella Bruck
as Dot
Kendall Carly Browne
as Ann
Danny Baseda
as Radioman
Tink Williams
as Hector
Corkey Ford
as Chi Chi
Charles R. Penland
as Tyrone
Anita Keith
as Old Lady
Mike Mazurki
as Gatekeeper
Margaret Muse
as Society Matron
Michael Misita
as Reporter 1
Harold Greene
as Reporter 2
Jim Alquist
as Reporter 3
Margie Platt
as Bride
Nike Zachmanoglou
as Maid at Party
Gloria Morrison
as Woman at Bar-B-Que
Robert Hammond
as Wedding Guest (uncredited)
Kane Hodder
as Alligator (uncredited)
Dana MacDuff
as Punk (uncredited)
Amy Panter
as Party Guest (uncredited)
Lewis Teague
Director
John Sayles
Screenplay
Story
Joseph Mangine
Director of Photography
Brandon Chase
Producer
Frank Ray Perilli
Craig Huxley
Original Music Composer
Kenny Endoso
Stunts
Conrad E. Palmisano
Stunt Coordinator
Dottie Catching
Richard O. Helmer
Special Effects Coordinator
Dale E. House
Jack Tyree
Peter Stader
Peter Smokler
Second Unit Director of Photography
Diamond Farnsworth
Tom Steele
Sue Dolph
Hairstylist
Hanania Baer
Makeup Artist
Paul Stader
Second Unit Director
Bruce Paul Barbour
Harry Wowchuk
Marianne Chase
Executive In Charge Of Production
Miller Drake
Lisa Marmon
Second Assistant Director
Rick Seaman
David Schmier
Camera Operator
Jerram A. Swartz
Assistant Director
Bobby Sargent
Moshe Yakobovesky
Gaffer
Cindy Wills
Michael Cassidy
Roger Creed
Laurie Cohn
Script Supervisor
Lori Rabin
Casting
Larry Bock
Editor
Tom Jacobson
Associate Producer
Robert S. Bremson
Executive Producer
Michael Erler
Art Direction
Ron Medico
Mark L. Rosen
Geno Havens
Cyd Smyllie
Set Decoration
Patricia Summers
Assistant Editor
Bill Williams
Jim Passon
Color Timer
Tony Cunha
Still Photographer
Ron McCausland
Key Grip
Sam Gart
First Assistant Camera
Thomas Vanghele
Second Assistant Camera
Jack Cooperman
Underwater Camera