Alligator
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
David
Robin Riker
Marisa
Michael V. Gazzo
Chief Clark
Dean Jagger
Slade
Sydney Lassick
Gutchel
Jack Carter
Mayor
Perry Lang
Kelly
Henry Silva
Brock
Bart Braverman
Kemp
John Lisbon Wood
Mad Bomber
James Ingersoll
Helms
Robert Doyle
Bill
Patti Jerome
Madeline
Angel Tompkins
Newswoman
Sue Lyon
ABC Newswoman
Leslie Brown
Young Marisa
Buckley Norris
Bob
Royce D. Applegate
Callan
Tom Kindle
Announcer
Jim Brockett
Gator Wrestler
Simmy Bow
Seedy
Jim Boeke
Shamsky
Stan Haze
Meyer
James Arone
Sloan
Peter Miller
Sgt. Rice
Pat Petersen
Joey
Micole Mercurio
Joey's Mother
Frederick Long
Sparks
Ed Brodow
Ross
Larry Margo
Stanley
Philip Luther
Purdy
John F. Goff
Ashe
Elizabeth Halsey
Policewoman
Barry Chase
Policeman 1
Richard Partlow
Policeman 2
Jerado Decordovier
Gator Vendor 1
Dick Richards
Gator Vendor 2
Vincent De Stefano
Gator Vendor 3
JoJo D'Amore
Gator Vendor 4
Bella Bruck
Dot
Kendall Carly Browne
Ann
Danny Baseda
Radioman
Tink Williams
Hector
Corkey Ford
Chi Chi
Charles R. Penland
Tyrone
Anita Keith
Old Lady
Mike Mazurki
Gatekeeper
Margaret Muse
Society Matron
Michael Misita
Reporter 1
Harold Greene
Reporter 2
Jim Alquist
Reporter 3
Margie Platt
Bride
Nike Zachmanoglou
Maid at Party
Gloria Morrison
Woman at Bar-B-Que
Robert Hammond
Wedding Guest (uncredited)
Kane Hodder
Alligator (uncredited)
Dana MacDuff
Punk (uncredited)
Amy Panter
Party Guest (uncredited)