Director
Leon Benson
DIRECTOR
John Florea
Herman Hoffman
Franklin Adreon
Eddie Davis
Monroe P. Askins
Anton Leader
Andrew Marton
Paul Guilfoyle
Jack Herzberg
Dick Moder
Lloyd Bridges
Felix E. Feist
Herbert L. Strock
David Friedkin
Otto Lang
Stars (in credits order)
Mike Nelson
Ken Drake
Alfonso
Courtney Brown
Guard
Jan Harrison
Betty Rainard
William Boyett
Asst. DA
Richard Probert
Dick Talbot
Russ Conway
Chief
Leonard Nimoy
Hoya - Saboteur
Frank Warren
Crew Member
Zale Parry
Female Scuba Diver
John Zaremba
Charlie Keller
Ross Elliott
USCG Lt. Dave Tulley
A.G. Vitanza
Bartender
Anthony George
Elias Storm
Lisa Gaye
Ann Barry
Rodolfo Hoyos Jr.
Caeser Franco
Ric Marlow
Conrad Barnes
Charles Maxwell
Enemy Agent
Wayne Mallory
Dr. Dick Baker
Paul Stader
Troy Melton
Charlie
Tom Brown
Ben Murdock
Ted de Corsia
Ahman Dhabi
Tyler McVey
Captain
Mike Keene
Dr. Norman Prescott
Neil Grant
Frank Jarnak
Noel Drayton
Dr. Graham
William McGraw
Cal Saunders
Paul Fierro
Captain Mariani
Michael Masters
Bill
Jeff Bridges
Boy
Christopher Dark
Costa - Convict Leader
Jim Bannon
Fire Chief Jim McVey
John Anderson
P.K. Kennedy
Peter Hansen
Bennett
Regina Gleason
Elena Londos
Joe Dominguez
Arturo Ramirez
Robert Karnes
Capt. Greg Evans
Kathie Browne
Eleana Dales
Linda Lawson
Jill Marzack
William Flaherty
USCG Cmdr. Frank Martin, MD
Larry Hagman
Alex Kouras
Joyce Taylor
Alma Carroll
King Moody
Consul Baumer
Don Ross
USCG Commander Greer
Robert Clarke
Doug Trimble
Don Eitner
Tom Gale
Sue Randall
Liz Brenner
Paul Maxwell
Dan Morgan
Don Oreck
Chuck Paskell
Jack Wagner
Dam Building Company Manager
Rand Harper
Hub Paskell
Robert Tetrick
Jack Paskell
Clark Howat
Clark
John Lamb
Diver
Patrick Waltz
Larry Putnam
Reed Parham
Hal Davis
Gregory Gaye
Dr. Jan Wenzel
Myron Healey
Russ Hodges
Whit Bissell
Ed Harris
John Beradino
Buster Gale
John Marley
Ben Crane
Robert Ridgely
Cougar Norris
June Blair
Inez
John Lupton
Carl Williams
Robert F. Simon
Dr.Tomaso Ricou
Douglas Dick
Paul Barton
Jack Hogan
Billy Riker
Jay Douglas
Dave Halsey
Beau Bridges
Warren Tucker
Nancy Hale
Ella Palmer
Thomas Browne Henry
Mr. Graham
John Montgomery Greene
Doc
Eric Feldary
Ben Tempesta
Victor Buono
Dr. Tank Wallace
Lisabeth Hush
Linda Kelway
Terry Becker
Alcott - Newspaper Reporter
Eugene Iglesias
Diego
Henry Biedinger
Dr. Eli Newman
Harry Lauter
Mr. D.
Harlan Warde
Jonas White
William Bakewell
David McGrath
Joseph Hamilton
Pete Bates
George Eldredge
Capt. Dan Hurley
Ross Martin
Finch
William Masters
Assassin
Al Ruscio
Captain Ebera
Guy Rennie
Harry 'Baldwin the Great' Baldwin
Ron Gorton
Jose
Robert Conrad
Hal Peters
Julian Burton
Heavyset Skindiver
Robert Tafur
Interior Minister Giardo
Carlos Rivero
Hernando - Fisherman
Jack Harris
Jim Cook
Ron Foster
Dr. Tom Stevenson
Byron Morrow
Agent Miles
Lane Bradford
Capt. Jonathan Moss
Arvid Nelson
Ralph Cutler
Ana Maria Majalca
Marcia
Milt Hamerman
Dr. Bradley
Robert Montgomery Jr.
Chan Harrington III
Bill Catching
Frank Brand
Harry Clexx
Mr. Rawson
Quinn K. Redeker
Joey
Richard Jeffries
USCG Yeoman
Jay Della
Desk Clerk in Manaco Hotel
Jon Lindbergh
Elvin - Police Officer
Nick Nicholson
Walter Babbitt
Frank Logan
Gino
Bruce Wendell
Howard Stone
Linda DeVol Morehouse
Student Diver
Robert Christian
Glenn Dixon
Cal Evans
John Rodney
Defense Attorney
Bob Hoy
Charlie O'Neil
Mike Road
Chuck Barron
Aline Towne
Elaine Darrow
Dale Ishimoto
Niko Sugimoto
Ken Clark
USCG Commander McStade
John Hackett
Bob Forrester
Leo Gordon
Panicky Miner
John Doucette
Louis Hale
Pamela Duncan
Catherine Martin
Gene Roth
Prof. Roland Cathcart
Susan Morrow
Joanna Mason
Steve Mitchell
Wilkes
Jan Brooks
Jennie Wallace
Keith McConnell
Mr. Webley
Sándor Varga Szabó
Bela Benedek
Peter Breck
Joe Gordon
Brett Halsey
Ed
Douglas Fowley
Pop
Gregg Palmer
Harry Herbie
Nobu McCarthy
Sandra 'Sandy' Chung
Robert Quarry
Bill Hill
Grandon Rhodes
Ship Owner
Lynette Bernay
Gracie Bond
John Shay
Ralph Nugent
Edson Stroll
Julian Laubec
Joe De Santis
Dr. Ruiz
John Archer
Jack Clayton
Connie Hines
Ann Prescott
Abraham Sofaer
Commissioner Arturo Mendes
Barbara Lord
Patricia Calvin
Robert Knapp
Andy Watson
Robert Gist
Captain Olsen
Anna-Lisa
Resia Helving
Ralph Taeger
Lee Batten
Stephen Joyce
Carl Berman
Bernard Fein
Mr. T
Rico Alaniz
Carlos Prado
Toni Gerry
Terry King
Jonathan Kidd
Fernando Casta
William Allyn
Johann Farber
Michael Granger
Norm 'Mr. Big' Brown
Page Slattery
Pete Rogers
Mary Ellen Terry
Susan - Scientist
Robert Gothie
Joe Ainsley
Ken Curtis
Dean
Keith Andes
Todd Webster
Kenneth Tobey
Pete Butler
Gertrude Michael
Mrs. Friedrich
Jean Porter
Marna Gould
Jack Ging
Lou James
Corey Allen
Young
Eugene Mazzola
Don Juan
Larry Pennell
Steve - Counterfeiter Leader
Valerie Allen
Dana Perry
Denise Alexander
Caroline Tucker
Kelton Garwood
Dr. Kendrick Kelway
John Hudson
Jerry Blaine
Joyce Meadows
Dorothy 'Dottie' Maybrook
Reed Hadley
Fred Darrow
Ron Hayes
Sam Carter
Nancy Valentine
Virgie Bryant
Lili Kardell
Carole Sloan
Mark Dana
Dr. Briggs
Mark Andrews
Johnny Cleaver
Roy Dean
Johnny Gerard
Margie Regan
Lucille Brandon
John Barclay
Dr. Jan Sperling
Cyril Delevanti
Lars Anderson
Morris Ankrum
Earl Tucker - Head of INS
Willis Bouchey
Mr. Ward
Dorothy Dean Bridges
Rena Crane
Peter Leeds
Reiman's Assistant
Bernie Gozier
Lord Cristobal
Tracey Roberts
Lucille Marshall
Larry Thor
Pete Zawicki
Michael Garth
John Sumner
Raikin Ben-Ari
Prof. Gorin
James Anderson
Inspector
Herbert Anderson
Professor George Bryan
Anne Anderson
Norma Herbie
Norma Brooks
Nancy Ordway
Norman Bishop
Norm
Jus Callahan
Scanoscope Operator
William Schallert
Dr. Ken Madison
Anne Helm
Oscar Beregi Jr.
Frederick Jorgeson
Mari Blanchard
Charlotte Hanley
John Qualen
Ulie Olafsen
John Gallaudet
Dr. Dudley Barrington
Shirley O'Hara
Fran Parmalee
Shirley Ballard
Gwen Hardy
Barry Russo
Colonel Diego Ramirez
Paul Sorensen
Pete
Sal Ponti
Edward 'Jocko' Palmer
Daria Massey
Susie Turner
Maris Wrixon
Edith Judd
Charles Quinlivan
Colonel Korvin
Mike Steele
US Coast Guard Commander Tugwell
Paul Clarke
Dr. Jamal Singh
Gordon Mills
Challoner
Jeno Mate
Louie Hermel
Jack Nicholson
John Stark
Chris Robinson
Kelsey
Vitina Marcus
Tali
Anthony Caruso
Tom Marzack
Anna Navarro
Maria
Nestor Paiva
Tio Ramon Delgado
Susan Silo
Leilani
Robert Sampson
Bob Hicks
Walter Reed
Case Jarrett
George Clayton Johnson
USCG Lt. Hartwell
Paul Birch
Dr. Bainbridge
Juli Reding
Blonde Woman
Vikki Dougan
Cheryl Carter
William Berger
Carl Friedrich
Lorrie Richards
Penny - Chaz's Girlfriend
Dan White
Sheriff Wyatt Walsh
Michael Whalen
Oliver Brandon
Jana Lund
Jill Bromley
Nan Adams
Barbara Clinton
Sharon Bercutt
Rayna
Dona Lorenson
Anna Buonanova
Bill Erwin
Dr. Hugh Benedict
Keith Richards
Ed Romer
Leonard Mudie
Eugene Laszlo
Robert Burton
Mr. Costigan
Steven Ritch
Reiman
Robert Shield
Dr. Jeremiah Kearns
Leo Needham
Markey
Josephine Parra
Pepita Valdez
Gerry Gaylor
Lili Benedek
Mark Dunhill
Technician
Joi Lansing
Laura Pepper
Anne Neyland
Kathy Gilliam
Tom Irish
Tom
Leonard Bremen
Chonski
Della Sharman
Millie Culverson
Lomax Study
Dr. Barr
Craig Woods
Fisherman
Vivien Lloyd
Garcia's Associate
Les Hellman
ACTOR
Bob Gilbreath
Lou, the Helicopter Pilot
Maurice Solomon
Frank Kirby
Mr. Capp
Amzie Strickland
Nurse Hawkins
Julie Sommars
Betty Crane
Valentin de Vargas
Emilio
Harold Innocent
Oceanographer Captain
John McCann
Jeff King
William Edmonson
Tony Lucietta
Linden Travers
Martha Loring
Helen Mowery
Susan Clayton
Nelson Olmsted
Marineland Aquarium Director
Arthur Gould-Porter
Det. Inspector Rigby
Bernard Kates
Boat Captain
Diana Crawford
Claire Roberts
William Duffy
Alex Boothby
Mary Patton
Alice Julien
Barnaby Hale
Jorgenson's First Mate
Fred Zendar
Cliff Hodges
Douglas Hume
Missle Launch Technician
Jimsey Somers
Lola
Robert Millar
Alvaro Guillot
Col. Amelio Vega
Paul Conrad
Navy Diver
Jerome Loden
Lieutenant Campos
Irene Tedrow
Naomi Roundtree
John Considine
Doak
Jan Arvan
Police Lieutenant
Bert Kramer
William Woodson
Dr. John Gregory
Pilar Del Rey
Nita Delgado
John Bryant
Investigator Larrabee
Bill Edwards
USCG Commander Murdock
Grant Woods
Fred Cleaver
Franco Corsaro
Prof. Antone Ricardees
Joseph Breen
Mr. Hart
Gloria Marshall
Joanna Sue Toliver
Ann Morrison
Mrs. Emmanuel Krag
Peter Forster
Dr. Alan Clark
Thomas Nello
Captain Navara
Francis Bethencourt
Vincent Morale
Kimo Mahi
Vinshaw
Mari Aldon
Dr. Kate Marlow
Ricou Browning
Carlos
Hank Patterson
Bill Henderson
Frank Wolff
1st Policeman
Douglas Henderson
Dr. Barton
Kaye Elhardt
Betty
Susan Dorn
Joanna's Sister
Tania Velia
Maria Wenzel
Bert Williams
Bill Davies
Anthony Eustrel
Inspector Saunders
Karen Welch
Nita Giardo
Madge Meredith
Louise Trimble
Edward Weeks
Jake Tareolo
Hanna Landy
Magna Androvich
Tom Vize
Toliver
George Becwar
Prison Guard #1
Jack Richardson
Hanes
Meg Wyllie
Mrs. Norris
Carlos Rivas
Younger Skin Diver
Walter Stocker
Paul Kern
Maurice Dallimore
Dr. Frank Leslie
Jean Ingram
Wanda
Barry Harvey
Ramone
Tony Mafia
Policeman
Marilee Phelps
Mrs. Turner
Lawrence Green
Dr. Stan Morton
Phil Posner
Seminard's Strongarm Man
Robert Darin
Bodyguard
Matt Pelto
Police Officer
Jerry Brent
Bobby O'Mera
Karl Held
USCG Radarman
Darlene Tompkins
Ginny - Chan's Girlfriend
Richard Evans
Chaz - Young Diver
Nan Peterson
Norma Carter
Mike Steen
Sonny Kendall
James Forrest
Police Inspector Lyons
Dehl Berti
Yacht Captain
Joan Patrick
Brunette Woman
Rafael López
Don Juan's Friend
Mary Lawrence
Dr. Barnes
Don Devlin
Ted Johnson
David Renard
Durango Lima
Ray Hamilton
Jim Parsons
Ken Roberts
Salvador Baguez
Father Guerra
Richard Bermudez
Pedro
Al Santos
Kwang Lon
Peter Dixon
Carl's Diving Partner
Ray Kellogg
Federal Agent Rawson
Margarita Cordova
Mrs. Avilar
Phil Arnold
Jeff Kinder
Riza Royce
Nurse
Andrea Kaplan
Karen Crane
Fred Catania
Duke Castro
Thomas Wilde
Mission Team Member
John Aberle
Burt Stuart
Jean Benoist
Mrs. Tom Gale
Harry Martin
Don Martin
Art Lewis
Benny
Harry Woods
Gustav
William Vaughn
Nancy Millard
Sandy Wheeler
Sandy - Pilot
Allen Jaffe
Ken Christy
Mr. Palmer
Ruben Moreno
The Colonel
Ricky Klein
Joey Turner
Ashley Cowan
Thin Skindiver
Tom Montgomery
Flotilla Team Member
Howard McLeod
Alex Finlayson
Blair Hardy
Kelly Yost
Sgt. Sloan
Lee Warren
Beth Anesen
Swimsuit Model
Dana Enlow
Danny
Phil Dean
USCG Commander Kelly
Nancy Reynolds
Nurse Davis
Charles Swain
Alfred
Barbara Frederick
Noreen Carr
Tom West
Helmsman
Warren Drew
Ed - Deputy Sheriff
John Close
Thug
George Robotham
Luis - Diver Assisting Nelson.
John Perri
Eric - Svoboda seaman
George Navarro
Guide
Gates Brown
Relay Man
Art Passarella
Prison Guard #2
Richard Deems
Preston Hanson
Morgan Brittany
Cindy
Nick Dimitri
George Turner
Sean Bartlett
Michael Keith
Helicopter Lookout
Jack Warford
USCG Radioman
Ronald Brown
Dick Jennings
Doug Carlson
USCG Lieutenant
Bob Gunderson
Seaman
Gene Hardy
Mission Boat Captain
Taldo Kenyon
Bill Kruger
John Moloney
Tugwell's Civilian Official
Bart Conrad
Al Turner
Maurice Meyer
Pilot
Charles Reade
Tramp
Parry Bivens
Phillip Barnes
Pat Henderson
Joe Kelsey
Henry Travis
Miguel Gleria
Bruce Dern
FBI Agent John Furillo
Vance Skarstedt
USCG Lt. Cameron Dawson
Richard Hill
David Kramer
Nervous Diver
Dennis O'Flaherty
Karen Scott
Leona - C Yue Cafe Proprietor
Fred Gavlin
Arnie Craig 'Mr. Waterfront'
Richard Bright
Henchman
Ralph Clanton
Dr. Martinson
Logan Field
Tug Benton
Ted Knight
Steve Powery
Stewart Bradley
Brady
Ethan Laidlaw
Fisherman (uncredited)