- Patricia Owens - Sharon O'Brien
- James Best - Tucson, 'The Cowboy'
- Martin Kosleck - Basalon
- Patricia Medina - Serena Diablo
- Leif Erickson - Jason Hayes
- James Frawley - Lucien Garth
- Herb Andress - Ehrberg
- Donald Harron - Paul Kimbrell
- Rita Moreno - Margaret Cowls
- Roberto Contreras - General Salazar
- Albert Paulsen - James Gunnar Ketterback
- Ed Wynn - Zachary Belden
- Diana Hyland - Laurel Peachey
- Lizabeth Scott - Mona Roberts
- Ken Murray - Charles P. Banner
- Chuck Hayward - Deputy
- Zasu Pitts - Mrs. Bowie
- Oskar Homolka - Janek Cybowski
- Miyoshi Umeki - Lotus Bud
- Sal Mineo - Lew Dixon
- Luciana Paluzzi - Mia Bandini
- Edward Platt - Capt. Frank Metcalfe
- Robert Easton - Hapless Magician
- Vic Dana - Forrest Shea
- Robert Sorrells - Corporal MacIver
- Michele Carey - Bianca Andrade
- Barrie Chase - Alison Grahame
- Leonid Kinskey - Juan Bagulesco
- Arthur Hunnicutt - Professor Llewellen Kingston
- Elaine Stewart - Felicia
- June Havoc - Miranda Forsythe
- Walter Pidgeon - B.G. Perkins
- Rory Calhoun - Ashton DeWitt
- Louis Hayward - Stacy Blackwell
- Jeanette Nolan - Agatha Carruthers
- Jayne Mansfield - Cleo Patrick
- Gene Raymond - Arthur Wade
- Michael Wilding - Dr. Alan Steiner
- Lori Saunders - Brunette at Party
- Jocelyn Lane - Angelina Brascio / Adriana Montaigne
- Joseph Ruskin - Sir Tristan Voss
- Gladys Cooper - Harriet Richards
- Karlheinz Böhm - Professor Thomas Marton
- James Shigeta - Sidney Ying
- France Nuyen - Zeeni
- Steve Forrest - Jocko Creighton
- Phyllis Newman - Comrade Alexia Salov
- Yvonne De Carlo - Countess Barbara Erozzi
- Gloria DeHaven - Connie French
- Jill Haworth - Ambrosia Mellon
- Glynis Johns - Steffi Bernard
- J. Carrol Naish - Mr. Toto
- David Winters - Special Agent James Martin (uncredited)
- Ben Wright - Alan Rycroft
- Sharon Farrell - Libby Hale
- Russ Tamblyn - Maximillian
- David Sheiner - Alexander Szabo
- Berry Kroeger - General Henri Zachron
- Don Ameche - Whitman Saunders
- Tom Ewell - Leander Clement
- James MacArthur - Larry Forsythe
- Joyce Jameson - Lucy Brewer
- Michael Ansara - Big Bwana Smith
- Morgan Brittany - Lolita
- Nico Minardos - Pepe Delgado
- Aliza Gur - Carmen
- Ann Tyrrell - Ruth Potter
- James Flavin - Officer Danny Robin
- Tammy Grimes - Jill Marsh
- Joanie Sommers - Pee Wee Wilson
- Josephine Hutchinson - Madeline Vickers
- Brooke Bundy - Suzanne 'Suzie' Winters
- Dyan Cannon - Francesca Szabo
- Steven Geray - Dr. Alexis Crystal
- Stuart Margolin - Young Man
- Celeste Yarnall - Blonde
- Arthur Batanides - Spanjard
- Steve Brodie - Graham Tree
- Jamie Farr - Zava
- Dub Taylor - Garnet
- Mark Goddard - Richard Adams
- Kipp Hamilton - Silkie
- Tom Tully - Jethro Tate
- Edy Williams - Doreen (uncredited)
- Edd Byrnes - Davey Carr
- Billy De Wolfe - Artemis Newpenny
- Mamie Van Doren - Aurora Knight
- Antoinette Bower - Countess Anna Marie Mouton
- Michael Dunn - Mr. Sin
- Ann Harding - Annabelle Rogers
- Linda Darnell - Monica Crenshaw
- Marty Ingels - Wally
- Seymour Cassel - Attendant
- Gypsy Rose Lee - Miss Bumpsy Cathcart
- Mari Blanchard - Mrs. Vasquez
- Michael Pate - Kauffman
- Jean Carson - Eagle Eye
- Whit Bissell - Dr. Freestone
- Lee Delano - Aide
- Diana Dors - Maxine Borman
- Spike Jones - Duke of Epsom
- Skip Homeier - Paul Lynnaker
- John Abbott - Conrad Jaeger
- Victor Jory - Jim Clover
- Kathleen Nolan - Maura
- Dana Wynter - Iris Marlowe
- Dawn Wells - Wendy
- George Nader - Chris Maitland
- Parley Baer - Colonel Pavlov Popoff
- Alan Mowbray - Butterfield
- Bernard Fox - Drummond
- Susan Oliver - Janet Fielding
- Felicia Farr - Whitney Kelly
- Fritz Feld - Captain of Waiters
- Stanley Adams - Lou Manzini
- Dick Smothers - Luke Rafer
- Elisha Cook Jr. - Wyatt
- Laraine Day - Lisa Cole
- Percy Helton - Hudkins
- Cecil Kellaway - Brother Flaherty
- Janis Paige - Sharon McCauley
- Arthur O'Connell - Dr. Stuart Alexander
- Carl Benton Reid - The Man
- Soupy Sales - Henry Geller
- William Demarest - Charlie Who
- Rosemary DeCamp - Mrs. Franklin
- Herschel Bernardi - Kid McCoy
- Deborah Walley - Gwenny Trent
- Joanne Dru - Solange Kelly
- Deanna Lund - Wac
- Richard Haydn - Julian Clarington
- Grady Sutton - Hubie
- Tab Hunter - Barney Blake
- Madge Blake - Mother Goose
- Gunilla Hutton - Model
- William Shatner - Arthur Reynolds
- Torben Meyer - Lobbermacher
- Marvin Brody - Kurtz
- Margaret Leighton - Connie Hanson
- Richard Reeves - Gorgo (Driver)
- Jay C. Flippen - Lieutenant Grogan
- Jay C. Flippen - Bill, the Desk Sergeant
- Sharyl Locke - Pat (minor)
- Lawrence Montaigne - Franz Werner
- John Hoyt - Otto Veidt
- Stubby Kaye - Joey Carson
- Joan Blondell - Ethel Kronkeit
- Joan Blondell - Candy Sturdevant
- Gena Rowlands - Paullette Shane
- Gena Rowlands - Mitzi Carlisle
- Nancy Sinatra - Jill Stacy
- Marianna Hill - Doc Goddard
- Dean Stockwell - Jay Boy Calhoun
- Louis Mercier - Duprez
- Dina Merrill - Barrie Coleman
- Dorothy Lamour - Lovey Harrington
- Dorothy Lamour - Flo Romaine
- Gene Baylos - Apartment Manager
- Dane Clark - Milton Yeager
- John Hubbard - Manicurist
- Julie Adams - Carla Cabral
- Jane Darwell - Mrs. Leah Mulligan
- George Sawaya - Officer
- Jack Carter - Red Dekker
- David Wayne - Al 'The Bomber' Devlin
- Charles Lane - Dr. Lusk
- Ed Asner - Pablo Vasquez
- Bruce Cabot - Thomas Mathewson
- Shelley Berman - King Dmitri
- J. Pat O'Malley - Flynn
- Buster Keaton - Mortimer Lovely
- Pepe Callahan - Trino
- Frankie Avalon - Max
- Frankie Avalon - Ralph Hirt
- Norman Alden - Mark Hodges
- Mickey Rooney - Archie Lido
- Virginia Mayo - Dr. Terry Foster
- Mary Astor - Florence Roberts
- Jack Haley - Victor Haggerty
- George Hamilton - Little John Lester
- George Hamilton - Clint Perry
- Elisa Ingram - Inga Ernst
- Irene Hervey - Mrs. Tilson
- Jill St. John - Pinky Likewise
- Henry Jones - Harrison Quentin Filmore
- James Whitmore - Joe Piante
- Larry D. Mann - Maximillian Darvas
- Mel Blanc - Bird's Voice (voice)
- Ida Lupino - Lynn Dexter
- Ida Lupino - Meniletha Calhoun
- Juliet Prowse - Renee De Armand
- Juliet Prowse - Angel Crown
- Susan Silo - Phoebe
- Elaine Devry - Peggy
- Eduardo Ciannelli - Dominic De Armand
- Gene LeBell - Wrestler
- Julie Parrish - Tanya
- Don Diamond - Romeo
- Sandra Gould - Mabel
- Irene Tedrow - Librarian
- Betty Hutton - Rena Zito
- Betty Hutton - Carlene Glory
- Fess Parker - Herman Sitwell
- Rhonda Fleming - Cathy Summit
- Rhonda Fleming - Clarissa Benton
- Janice Rule - Seraphim Parks
- Janice Rule - Mimsy B. Groves
- Jack Lambert - Charlie 'The Arm' Segar
- Gerald Mohr - Paul Schreiner
- Maurice Dallimore - The Englishman
- William Bendix - Fred Hopke
- William Bendix - Harrison Weems
- Bill Erwin - Fire Marshal
- Susan Strasberg - Melinda Drake
- Susan Strasberg - Tawny Hastings
- Gisele MacKenzie - Keekee Lee
- Martha Raye - Beulah Brothers
- Janette Scott - Jennifer Robbins
- Carolyn Jones - Carole Durand
- Carolyn Jones - Betsy Richards / Meredith Richards / Various Characters
- Ken Berry - Fella
- Joy Harmon - Belle Sue Walsh
- Joy Harmon - Barbara Sue
- Jane Greer - Lonnie Smith
- Vera Miles - Claudia Sutton
- Eddie Foy Jr. - Dugan
- Eddie Foy Jr. - Claude Jester
- Elizabeth Allen - Sophia, Burke's Girlfriend
- Elizabeth Allen - Elizabeth Dunwoody
- Lynn Loring - Ann Rogers / Anna Rodriguez
- Gloria Grahame - Doris Landers
- Gloria Grahame - Helen Dekker
- Don Haggerty - Policeman
- Ivan Triesault - Wexler
- Jackie Joseph - Girl Singer
- Jackie Joseph - Piggy
- Aldo Ray - Mister Harold
- Jackie Coogan - Bert Crowley
- Hoagy Carmichael - Carl Baker
- Hoagy Carmichael - 'Jango' Jordan
- Debra Paget - Helen Harper
- Debra Paget - Juliet
- Dan Tobin - Dr. McLean
- Dan Tobin - Homer Franklin
- Wally Cox - Dr. Heresford Handy
- Wally Cox - Count Carlo Szipesti
- John Qualen - Richard Prince
- Gloria Swanson - Miss Lily Boles
- Gloria Swanson - Venus Hekate Walsh
- Hank Patterson - Lukey Slade
- Eddie Albert - Arthur J. Poindexter
- Elsa Lanchester - Mrs. Ormsby
- Elsa Lanchester - Bessie Mopes
- Barbara Pepper - Cleaning Woman
- Peggy Rea - Sylvia Lewis
- Basil Rathbone - Milo James
- Madlyn Rhue - Manicurist (uncredited)
- Beverly Adams - Model
- Beverly Adams - China
- David White - Madison Cooper
- Dennis Day - Harvey Haight
- Dennis Day - Waldo Fleischacker
- Jan Murray - Dr. Abernathy
- Frankie Laine - Kelly Rogers
- Marie Wilson - Chuchi Smith
- Marie Wilson - Ramona Specks
- Forrest Tucker - Cyrus Smuts
- Elizabeth MacRae - Marcy
- Herbie Faye - Robert Jacobs
- BarBara Luna - Consuelo Menardez, 'La Tigra'
- Paul Carr - Paul Starke
- Jim Backus - Herkimer Witt
- Jim Backus - Harold Mason
- Jim Backus - Pork Pie Hannigan
- Richard Carlson - Dr. Carol Smith
- Richard Carlson - Nels Manning
- Eddie Bracken - 'Evil Eye' Hatton
- Eddie Bracken - Simeon Quatraine
- Lyle Bettger - Captain Donahue
- Don Taylor - George Hogarth
- Don Taylor - Scubie Baker
- Thomas Gomez - Caligula Foxe
- Thomas Gomez - Herr Otto Kraus
- Rod Cameron - Harry Joe Murdock
- Eva Gabor - Lily Bentley
- Zsa Zsa Gabor - Commissar Ilona Buda
- Zsa Zsa Gabor - Anna
- Dan Duryea - Sam Atherton
- Dan Duryea - Hop Sing Kelly
- Sterling Holloway - Fisk
- Byron Morrow - Charles Lee Horne
- Suzy Parker - Bridget Jenkins
- Suzy Parker - Angela Pattison
- Abbe Lane - Tashua Amil
- Abbe Lane - Melissa Hammer
- Harry Basch - O'Brien
- Harry Basch - Harlan O'Brien (uncredited)
- Sheldon Leonard - Ronald 'Touchy' Touchstone
- Sheldon Leonard - 'Chicasaw Pete' Wickowski
- Patsy Kelly - Agatha Beauregard
- Patsy Kelly - Big Mouth Annie
- Leigh Chapman - Ad Lib Girl
- Dean Jones - Rudy Davis
- Chill Wills - General Hector Harder
- Chill Wills - Harry Riggs
- Chill Wills - Stanton Custer
- Henry Corden - Boris
- Rebecca Welles - Susan
- Mabel Albertson - Adrianna Mercer
- Stafford Repp - Cody
- Gale Storm - Honey Feather Leeps
- Gale Storm - Dr. Nonnie Harper
- Eartha Kitt - Honoria De Witt
- Hugh Hefner - Manager
- Jeanne Crain - Amy Booth
- Jeanne Crain - Lorraine Turner
- Jeanne Crain - Polly Martin
- Sammy Davis Jr. - Cordwainer Bird
- Tura Satana - Peach Petal
- Hy Averback - Director
- Tom Smothers - Ghys Rafer
- June Allyson - Jean Samson
- Wendell Corey - Milo Morgan
- Bobby Darin - Roland Trivers (uncredited)
- Gene Nelson - Rick Mason
- Gene Nelson - Danny Swift
- Barry Kelley - Joe Nolan
- Theodore Bikel - Senor Manfred Gonzales
- Theodore Bikel - Vic Bates
- Nancy Wilson - Choo Choo
- Richard Loo - Grass Slipper
- Sharon Cintron - Stripper
- Sheree North - Cleo Delaney
- Sheree North - Myrtle 'Gigi' String
- Sheree North - The Maharani of Kooshipoo
- Elizabeth Montgomery - Smitty
- Elizabeth Montgomery - Stacey Evans
- Telly Savalas - Fakir George O'Shea
- Telly Savalas - Balakirov aka Richard Goldtooth
- Telly Savalas - Charlie Prince
- Larry Thor - General Corning
- John Ireland - Orrin Lashwell
- John Ireland - Bullock
- Dave Willock - Buzz Hardy
- Harry Lauter - Dr. Kalmus
- Lurene Tuttle - Amanda
- Joan Bennett - Denise Mitchell
- Aaron Spelling - Harry Penn (uncredited)
- Tina Louise - Bonnie Belle Tate
- Amzie Strickland - Woman
- Reginald Gardiner - Pepperill Twill
- Reginald Gardiner - Piggott
- Reginald Gardiner - Putzi Voltran
- Susan Bay Nimoy - Eileen
- Anthony Eustrel - Man at Party
- Anthony Eustrel - Florist
- Anthony Eustrel - Manager
- Broderick Crawford - Carlos Varga
- Broderick Crawford - Tristram Corporal
- Broderick Crawford - Milhew Court
- Broderick Crawford - Hamilton Talbert
- Nina Foch - Anjanette Delacroix
- Arlene Dahl - Maggie French
- Arlene Dahl - Eva Martinelli
- Arlene Dahl - Princess Kortzoff
- Arlene Dahl - Gloria Cooke
- Macdonald Carey - Burl Mason
- Macdonald Carey - Ben Gardner
- Macdonald Carey - Waldo Nicely
- Macdonald Carey - Franklyn Warren
- Dick Clark - Gil Knox
- Dick Clark - Peter Barrows
- Carl Reiner - Chief Inspector House
- Carl Reiner - Binky Fawcett
- Horst Ebersberg - Max
- Horst Ebersberg - Batton
- Howard Duff - Lou Cole
- Howard Duff - Charlie January
- Nancy Kovack - Girl Girl
- Nancy Kovack - Alistair
- Nancy Kovack - Prudence Wrightly
- Nancy Kovack - Athelstone Scone
- Mako - Happy Tuava
- Mako - Pete
- John Zaremba - Lt. Charlie Johnson (uncredited)
- Ruth Roman - Elinor Albrick
- Jimmy Cross - Jackie Mears
- Hal March - Paul Anders
- Hal March - Yates Dudley
- Sandra Giles - Mrs. Kurtz
- Sandra Giles - Brunette
- Ricardo Montalban - Nicholas Amenor
- Ricardo Montalban - Armand Dubovier
- Corinne Calvet - Francesca Bel Ami
- Corinne Calvet - Ariella Martel
- Corinne Calvet - Felice De Marco
- Steve Cochran - St. John Carlisle
- Steve Cochran - Fletcher Seamway
- Steve Cochran - Phil Ross
- Jack Raine - Butler
- Paul Lynde - Guy Hawthorne Jr.
- Paul Lynde - Dr. McCoy
- Paul Lynde - Arthur Clark
- Andy Devine - Charles Cortland
- Byron Foulger - Howard
- Byron Foulger - Beldon
- Hal Baylor - Atlas (uncredited)
- Nanette Fabray - Amanda Tribble
- Nanette Fabray - Rowena Coolidge
- Carol Merrill - Model
- Cedric Hardwicke - John Busch
- Lennie Weinrib - Maddox
- Lennie Weinrib - Cully
- Diana Lynn - Marian Van Martin
- Diana Lynn - Elaine Truscott
- Dee J. Thompson - Nurse
- Joan Staley - Laura
- Joan Staley - Chrissie Keller
- Joan Staley - Traffic Girl
- Daniel H. Jenkins - Attorney
- Dewey Martin - Dominic Farrow
- Dewey Martin - Con Murdock
- Virginia Grey - Elaine Barrows
- Lester Dorr - Lovely's Butler
- Peter Leeds - Martin
- Peter Leeds - Don Kyles
- Keenan Wynn - Kid Corey
- Keenan Wynn - Hamilton 'Give 'em Away' Murphy
- Janet Blair - Violet
- Janet Blair - Rina Jacobs
- David Niven - Harvey Cleeve
- Jan Sterling - Vera Selby
- Jan Sterling - Devora Cato
- Susan Flannery - Secretary
- Fernando Lamas - Kelly Mars
- Fernando Lamas - El Greco
- Sandra Warner - Mary
- Burgess Meredith - Sidney Wilde
- Burgess Meredith - Harold Harold
- Burgess Meredith - Burton Reese
- Alean 'Bambi' Hamilton - Cleo
- Hazel Court - Constance Dexter
- Hazel Court - Goodigan 'Goody' Handy
- Jane Wald - Ursula Prince
- Stephen McNally - Ed Nickerson
- Stephen McNally - Frank Walsh
- Agnes Moorehead - Dona Ynez Ortega y Esteban
- Agnes Moorehead - Liz Haggerty
- Agnes Moorehead - Pauline Moss
- Louis Quinn - Henry Cassidy
- Louis Quinn - Delicatessen Owner
- Greta Chi - Kara, Chen's Assistant
- Una Merkel - Miss Samantha Cartier
- Una Merkel - Mrs. Thomas Barrett
- Una Merkel - Clara Lovelace
- Nestor Paiva - Padre Emiliano
- Nestor Paiva - Dr. Gonzales
- Shuji J. Nozawa - Mr. Chen
- Don Rickles - Lou Kronkeit
- Don Rickles - Swifty Piedmont
- Don Rickles - Frank Cross
- Joan Caulfield - Betty Techman
- Joan Caulfield - Psyche Jones
- Joan Caulfield - Alexis Raff
- Bartlett Robinson - Gentleman
- Bartlett Robinson - Robert Benbow
- Eddie Quillan - Elevator Starter
- Eddie Quillan - Mr. Jellybean
- Annette Funicello - Dorrie Marsh
- Annette Funicello - Anna Najensky
- Terry-Thomas - Arthur Shelby
- Terry-Thomas - Charlie Hill
- Terry-Thomas - Gideon Auerbach
- Edward Everett Horton - Wilbur Starlington
- Edward Everett Horton - Grover Leander Smith
- Louis Nye - James Stock
- Louis Nye - Hooper
- Robert Middleton - Jed Hawkes
- Robert Middleton - Ragnar Windsor
- Robert Middleton - Ezekiel Kindworth aka 'Rocky Mountain'
- Lola Albright - DeeDee Booker
- Lola Albright - Jennifer Carlisle
- Lola Albright - Eve Chapin
- Lola Albright - Miss. Peggy Frost
- Lola Albright - Shirley Mills
- Phil Harris - Rip Farley
- Phil Harris - Gus Watt
- Marilyn Maxwell - Eudora Carey
- Marilyn Maxwell - Maria Groovy
- Marlyn Mason - Girl
- Marlyn Mason - Marian Wagner
- Marlyn Mason - Maxine
- Ann Blyth - Deirdre DeMara
- Ann Blyth - Valerie
- Joyce Nizzari - Molly Baker
- Joyce Nizzari - Bit Girl
- Joyce Nizzari - Bunny (Tammy)
- Ed Begley - Alkali
- Ed Begley - James Littlefield
- Ed Begley - Morgus Ghoul
- Ed Begley - Bascule Doirot
- Anne Helm - Effie Mae Porter
- Anne Helm - Sable Delacroix
- Joe Higgins - Monty
- Joe Higgins - Charlie
- Fred Clark - Jackson Trade
- Fred Clark - 'Mac' McNulty
- Allyson Ames - Gal
- Allyson Ames - Blonde (Southern Girl)
- Allyson Ames - Miss Halsey
- Ruta Lee - Margot Davis
- Ruta Lee - Ulla Swenson
- Ruta Lee - Laura Jean
- Susanne Cramer - Cindy
- Susanne Cramer - Elsa Werner
- Terry Moore - Sarah Kingston
- Terry Moore - Nikki Manners
- Terry Moore - Felice Knight
- Phil Arnold - Billy, Little Guy
- Phil Arnold - Barney
- Phil Arnold - Harry
- Barbara Eden - Marni Lee
- Barbara Eden - Sylvia Hanson
- Barbara Eden - Linda Murray
- Barbara Eden - Vanessa Barrett
- Cesar Romero - Louis Simone
- Cesar Romero - Gregorio Jonas
- Cesar Romero - Police Chief Alvaro
- Cesar Romero - Antonio Cardoza
- Cesar Romero - Marcus DeGrute
- Mary Ann Mobley - Sugar
- Mary Ann Mobley - Teri
- Mary Ann Mobley - Denise
- Mary Ann Mobley - Cindy
- Mary Ann Mobley - Girl
- Claire Kelly - Samantha
- Claire Kelly - Model
- Lisa Gaye - Samantha 'Sam' Scott
- Lisa Gaye - Florita Mendoza
- Milton Parsons - Jameson - the Butler
- Milton Parsons - Man
- Milton Parsons - T. Mena
- Milton Parsons - Butler
- Milton Parsons - Grippsholm
- Martha Hyer - Clarissa Montgomery
- Martha Hyer - Dr. Serena Standish
- Martha Hyer - Penny Allen
- Martha Hyer - Gloria Vickers
- Martha Hyer - Adrienne Shelton
- Martha Hyer - Jerri Vaughn
- Paul Richards - The Great Grindle
- Paul Richards - Lennie 'Leonardo' Krull
- Jack Weston - Gogi Zito
- Jack Weston - Silly McCree
- Nick Adams - Sonny 'Sundance' Dancer
- Nick Adams - Max the Mysterious
- Nick Adams - Charlie Vaughn
- Nick Adams - Harold Ormsby
- Nick Adams - Clayton Newman
- Nehemiah Persoff - Jason Flonder
- Nehemiah Persoff - Albert Indigo, 'Mr. I'
- Nehemiah Persoff - Wilhelm Kasimer
- Alvy Moore - Ralph Kelso
- Alvy Moore - Photographer
- Alvy Moore - Herbert
- Alvy Moore - Arnie
- Alvy Moore - Spiegel
- Kevin McCarthy - Bill Adams
- Kevin McCarthy - Chukker Curtis
- Kevin McCarthy - Elliott Dunning
- Edgar Bergen - Horton Galbraith
- Edgar Bergen - George Smith
- Edgar Bergen - Clyde Olsen
- John Cassavetes - Eddie Dineen
- John Cassavetes - Alfred Algernon
- John Cassavetes - Carlos de Vega
- John Cassavetes - Stephen Collins
- Hans Conried - Dr. Bing
- Hans Conried - Leonid Borodny
- Hans Conried - Pepe Van Heller
- Francine York - Vanya
- Francine York - Francesca
- Francine York - Liz
- Francine York - Cleo Fitzgerald
- Francine York - Nurse
- Army Archerd - Army Archerd
- Army Archerd - Reporter
- Army Archerd - Father
- Army Archerd - Press Secretary
- Anne Francis - Honey West
- Anne Francis - Suzanne Foster
- Diane McBain - Lana De Armand
- Diane McBain - Xenobia
- Diane McBain - Susan Shaw
- Diane McBain - Cissy Davenport DeWitt
- Alan Caillou - Jamieson Willowby
- Alan Caillou - Manager
- Vaughn Taylor - Ben Schneider
- Vaughn Taylor - Mr. Moody
- Michael Fox - Coroner George McLeod
- Michael Fox - Lab Man
- Michael Fox - McLoud
- Michael Fox - Technician
- Bonnie Beecher - Bunny
- Lynette Bernay - Teresa Rao
- Lynette Bernay - Girl
- Janet Clark - Matronly Art Lover
- Harry Harvey - Bank Guard
- Paul Sorensen - Frank Willard
- Paul Sorensen - Lead Cop in Raid
- James Drake - Man
- Sol Gorss - Bouncer (uncredited)
- Eric Feldary - Thanda
- Lovyss Bradley - Hotel Guest (uncredited)
- Peter Mamakos - Carlos Delgado
- Michael St. Clair - Volkers
- Herschel Graham - Club Patron (uncredited)
- Troy Melton - Taylor
- John Saxon - Bud Charney
- Aaron Spelling
Ricardo Montalban hace el papel de Armand Dubovier.
Cesar Romero hace el papel de Police Chief Alvaro.
Jay C. Flippen interpreta a Lieutenant Grogan en la serie.
Elisha Cook Jr. hace el papel de Wyatt.
John Qualen hace el papel de Richard Prince.
Leonid Kinskey interpreta a Juan Bagulesco en la serie.
Gladys Cooper interpreta a Harriet Richards en la serie.
Percy Helton interpreta a Hudkins en la serie.
Vaughn Taylor hace el papel de Mr. Moody.
Josephine Hutchinson interpreta a Madeline Vickers en la serie.
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