- Geoffrey Horne - Peter Eden
- Barbara Babcock - Elaine Carey
- Robert McQueeney - Thornton Richardson
- Mako - Low Sing
- Lloyd Haynes - Military Policeman
- Joanne Dru - Sabrina Bradley
- Peter Haskell - Abel Marcus
- Signe Hasso - Yolanda deLukens
- Lloyd Bochner - Dan Carley
- Diana Hyland - Claudia Bromley
- Stuart Nisbet - Dave Quincy
- Timothy Scott - Honey Boy
- Jeffrey Hunter - Emmet Crown
- Bert Freed - Police Sgt. Bert Clark
- James Best - Yale Barton
- Ian Wolfe - Peter Willman
- Gerald S. O'Loughlin - Ben Wade
- Michael Strong - Dale Hyde
- Robert Strauss - Bud Crocker
- Susan Flannery - Janet Prescott
- Ralph Meeker - Earl Evans
- Jason Evers - Dirk
- Richard Anderson - Phil Trager
- Christopher Dark - Martin
- Cesare Danova - Felix Garth
- Tom Drake - Duke Slate
- Mort Mills - Alex Colony
- Wayne Sutherlin - Clown at costume party
- Harry Lauter - Brannigan
- Harold Gould - Calvin Ryland
- Percy Helton - Gus
- Frank Marth - Police Lieutenant
- Victor Jory - Charles Delaclaire
- John Hubbard - Giles
- Lynda Day George - Ardis Ralston
- Russ Conway - Emmet Dolan
- Charles Bateman - Quentin Crane
- Raymond St. Jacques - Hollis Silver
- Brenda Benet - Girl
- Jason Wingreen - Doctor
- Larry D. Mann - Dr. Eric Mabouse
- Joseph Sirola - Charley
- Glenn R. Wilder - Murf
- Buff Brady - Guard
- Paul Carr - Eddie Carter
- Rand Brooks - Conway
- Nicolas Coster - Police Officer Gregory
- Richard X. Slattery - Steve Gant
- Marvin Brody - Eddie Rech
- William Phipps - Jack Starkey
- Angelique Pettyjohn - Girl
- Paul Gleason - Paul Garrett
- Tyler McVey - Police Chief
- Arthur Batanides - Shugo
- Bill Walker - Bartender
- John Carradine - James Rancourt / The Scarf
- Nora Marlowe - Apple Annie
- Sheila Leighton - Secretary
- Celia Milius - Melissa Neal
- Jerry Ayres - Pete
- Robert Gunner - Detective
- Thordis Brandt - Nedra Vallen
- Edmund Hashim - Prince Rafil
- Alberto Morin - Abu Bakr
- James Lanphier - Colonel Sarajek
- Patricia Barry - Hazel Schmidt / Vina Rose
- Kelly Jean Peters - Jackie Cameron
- Ed McCready - Detective Olson
- Al McGranary - Minister
- Bob Harvey - Policeman
- David Renard - Joe Sweek
- Richard H. Cutting - Professor Miller
- Don Eitner - Pat Allen
- Norman Leavitt - Walter Melvin
- John Alvar - Mark
- Gary Owens - Newscaster
- Gary Owens - Commentator
- Sheilah Wells - Laura Spinner
- Dee Carroll - Woman
- Ron Burke - Joe
- George Robotham - Nat Pyle
- Eddie Ness - Crandall
- Harry Fleer - Evans
- Shepherd Sanders - Carney
- Pamela Curran - Vanessa Vane
- Maurice Manson - Cavanaugh
- Jean Marie Ingels - Dorothy
- Victoria George - Harriet
- Marina Ghane - Helga
- Henry Hunter - Wylie
- Sandy McPeak - Phil
- Grant Woods - Steve
- Bill Baldwin - Dr. Karl Bendix
- Mike Mahoney - Policeman
- Jim Raymond - Driver
- Lang Yun - Mary Chang
- Keye Luke - Mr. Chang
- Allen Jung - Wing Ho
- Frank Gerstle - Mel Hurk
- Douglas Evans - Leland Stone
- Gene LeBell - Barney
- Jacques Aubuchon - Tubbs
- Pat Patterson - Policeman #1
- Kirby Brumfield - Policeman #2
- Annazette Chase - Telephone Operator
- Roydon Clark - Aldo
- Warren J. Kemmerling - Bert Selden
- Beth Brickell - Dr. Hannah Thomas
- Jack Garner - Guard #1
- Jack Garner - Doorman
- Jack Garner - Policeman #1
- Jack Denbo - Gus Wander
- James Farley - Carmichael
- Owen Orr - Carlo
- David Fresco - Wiggins
- Regis Parton - Spike
- Fred Krone - Rook
- Dick Dial - Reporter
- Dick Dial - Del
- Jim Drum - Guard
- Harvey Parry - Bill
- Harvey Parry - Lefty
- Robert F. Hoy - Woody
- Linden Chiles - Warren Ryland
- E.J. André - Paul
- John Baer - Bradford Devlin
- Tom Simcox - Dan Scully
- J. Edward McKinley - Simon Neal
- Sydney Smith - Willoughby
- Sally Mills - Secretary
- Troy Melton - Pete
- Troy Melton - Henchman #1
- Tony Epper - Nixie
- Bill Couch - Carns
- William White - Jesse
- Brian Avery - Police Officer Jim Dixon
- Barry Ford - Lawson
- Jack Perkins - Desk Sergeant
- Linda Gaye Scott - Vama
- Joe Di Reda - Bill Corman
- Brett King - Major Jackson
- Jerry Catron - Henchman #2
- Dick Poston - Air Force Captain
- Bennie E. Dobbins - Air Force Colonel
- Dale Van Sickel - Henry - Night Watchman (uncredited)
- William Dozier
Percy Helton interpreta a Gus en la serie.
Ian Wolfe interpreta a Peter Willman en la serie.
Cesare Danova hace el papel de Felix Garth.
Van Williams interpreta a Britt Reid / The Green Hornet en la serie.
Bruce Lee interpreta a Kato en la serie.
Wende Wagner interpreta a Leonore "Casey" Case en la serie.
Lloyd Gough interpreta a Michael Axford en la serie.
Walter Brooke hace el papel de Frank P. Scanlon.
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