Director
Ricou Browning
DIRECTOR
Stanley Z. Cherry
Joe Gannon
Paul Landres
Hollingsworth Morse
Leon Benson
Andrew Marton
Frank McDonald
Marshall Thompson
Herman Hoffman
Brian Kelly
Edward Haldeman
Stars (in credits order)
Porter Ricks
Luke Halpin
Sandy Ricks
Tommy Norden
Bud Ricks
Flipper
Peter Van Zyl
Swimmer
Ulla Strömstedt
Ulla Norstrand
Courtney Brown
McCoy's Mate
Eric Applewhite
Sheriff
Andy Devine
Hap Gorman
Pat Henning
Sean McCoy
Tony Gulliver
Charlie
Cheryl Miller
Bonnie McCoy
Jeff Jones
Customer
Mal Jones
Peterson
Dan Chandler
Warden Dennis
Jerry Newby
Ed Belden
Ben Hawkins
Zoo Man
Charles G. Martin
Dr. James
George-Ann Williamson
Rita Ellis
Frank Schuller
Pilot of Plane
Frank Logan
Commander Brownell
Reed Parham
Ben
Warren Day
Chuck
Guy Rennie
Simpson
Bill Higbie
Man in Crowd
Mart Hulswit
Dan Healy
Stephen Liss
Stevie Reynolds
Burt Reynolds
Al Bardeman
Ron Hayes
Mac (Pilot)
Fred Silber
Dan
Huntz Hall
Barney
Daniel J. Travanti
Commander Willard
Trevor Bardette
Luigi
Thomas Hill
Ted Marlowe
John Kerr
Keller
Stuart Goetz
Dirk
Joe Morrison
Captain Harvey
Dan White
Captain Bender
William Jordan
Eric Tilton
Thomas Hunter
Dave Ellery
Bill Wohrman
Hal
Ira Robbins
Jed Landis
Margaret Hayes
Congresswoman Helen Browning
Chris Charney
Liz
Dick Lynn
Construction Boss
Tommy Lane
Nick
Barbara Feldon
Erna Morley
Robertson White
Capt. Jordan Loomis
Richard O'Barry
Sam
Al Leibert
Lars Rasmussen
Karen Steele
Fran Whitman
'The Monster'
Templeton Fox
Mrs. Maguire
Richard Duemmling
Boy on Dock
Jon Cypher
Jim Lorman
Jan Harrison
Joanna
John Abbott
Professor Marvello
Diana Douglas
Mrs. Granville
Diana Van der Vlis
Kathryn Terrence
John Lasell
Dr. Rothwell
Ken Drake
Dorrie Stone
Phil Vandervort
Mike Belden
William Traylor
Dr. Darmon
Dino Tarronova
Alexis Demopoulos
James Best
Dr. Peter Kellwin
Bo Svenson
Harry Hobson
Julie Sommars
Tina's Mother
Dr. William Tollner
Wende Wagner
Ella Bailey
Karl Held
Alan Bentley
Aline Towne
Jean Hallson
Betsy Jones-Moreland
Lynn Borden
Robert Wolders
Captain Johnson
Joseph Gallison
Joe Malison
Ben Kukoff
Captain West
Dan Frazer
Inspector of Parks Gorden
Martin E. Brooks
Kent
Susan Abbott
Janie Mathews
Oswaldo Calvo
Tio Ramon
Marty Silber
Shorty Meyers
George Ebeling
Captain Peabody
Jack Becerra
Fisherman
Martin Sheen
Phil Adams
Gloria DeHaven
Mrs. Sharp
Robin Mattson
Robin James
Doris Dowling
Aunt Martha
James Patterson
Scott Emson
Jean-Pierre Aumont
Guy Courtney
Allan Frank
Dr. Murdock
Chip Haldeman
Diver
Jessica Walter
Elena Darmon
Lynda Day George
Linda Granville
Michael Conrad
Conlon
Michael Masters
Pete
Frank Schofield
Dr. Koenig
Cal Bellini
Tommie Demopoulos
Duke Farley
Kyle Stewart
Linda Bennett
'Grandma' Hadley
M'el Dowd
Amy Field
Robert Reilly
Dick
Matt Crowley
Parkey
Lee Phillips
Dick Johnson
John Castle
Wilson
John Lupton
Carl Borden
Jack Carr
Monty Lucius
Bob O'Connell
Mr. Webson
Mike Keene
Dr. Paul Drew
Ronald von Klaussen
Glenn Hallson
Heather MacRae
Anne
Jose Luis Greco
Prince Kaza
Steve Gonzales
Pedrito
Clark Dickson
Chief Petty Officer
Dolores Kirby
Mrs. Tremaine
Steve Gellar
Howie
Randy Kuhl
Jimmy Healy
Jim Paul Eilers
Dr. Brummel
Jack Kersten
Joe
David Soul
Dennis Blake
George De Vries
George Meeker
Pat Minor
Diver's Wife
Peter J. Welsh
Official
Chuck August
Man Diver
John McGovern
Constable Peters
Monroe Myers
Anthony Dauber
Jason Greene
Sam Field
Rene Burau
Tim Johnson
Bob Sipes
Helicopter Crew Chief
Denise Nickerson
Tina
Gil Frye
Manuel
Patty Glander
Teenage Girl
Dorothy Wilson
Joanne Thomas
Dyke Davis
Swifty
Marty Ryan
Scuba Diver
Rick Picerno
Hanes
Jim Paul Ellers
Fred Burrell
Dr. Osborne
Barbara Biggart
Norma Anderson
Frank Cousins
Foreman
Curtis Tanberg
Stan
Big John
Matt Farnley
Adrienne Bourbeau
Mrs. Martin
Rey Baumel
Capt. Jonathan West
Toni Camel
Woman Diver
Fred Kelly
Petty Officer
Bert Williams
Jack
Ivy Thayer
Imogene Pratt
Earl Mackin
Dorreen Bernhardt
Susan
Tony Pearl
Mr. Martin
Lee Hanna
Circus Advance Man
Gil Soule
Nate
Helen Norden
Small Girl
Jay Laskay
Lloyd Desco
Joey Carter
Mr. Jones
Ruth Nadel
Mrs. Jones
Mel Pape
Mr. Murphy
David Bilodeau
Fatso Cummings
Bruce Kushner
Small Boy
Janice Day
Mrs. Grover
Judy the Chimpanzee
Judy (uncredited)
Pelican (uncredited)
Sparky
Seal (uncredited)
Billy
Ocelot (uncredited)
Leo
Lion (uncredited)