- Simone Griffeth - Susan Stockwood
- Gordon Jackson - Sir William Belgrave
- Ethelreda Leopold - Bidder #1
- Jimmy Baron - Matt Taylor
- Ronald Lacey - Inspector Michelot
- Jonathan Frakes - Adam Blake
- Dean Stockwell - James Francis
- Charly McClain - The Rhinestone Cowgirl
- Helen Page Camp - Mrs. Essen
- Daniel J. Travanti - Edgar
- Jerry Stiller - Myron Finkle
- Barrie Ingham - Mr. Tween
- Macon McCalman - Dr. Harry Capello
- Andrew Prine - Russell Robinson
- Cliff Osmond - Vasquez
- Patrick Macnee - Matthew Grade
- Vincent Schiavelli - The Beret
- Edward Mulhare - Arthur Sydney
- Lloyd Haynes - Lt. Croyden
- Robert Englund - Buddy Kilgore
- Madlyn Rhue - Charlotte Fleming
- Gino Conforti - Hy Stoner
- Edith Atwater - Dr. Jane Barrett
- Soon-Tek Oh - Lang Chen Cheng
- Frances Bay - Flower Vendor
- Joe Mantell - Al Teresi
- David McCallum - Geoffrey Atterton
- Keene Curtis - Alden Kendra
- Joan Shawlee - Mrs. Goodrich
- Kene Holliday - William Dean
- Mickey Jones - Announcer
- Sid Haig - Gunther Maddox
- Robert Tessier - Mover #1
- Jack Ging - Drew Kendall
- John Vernon - Travis Saunders
- Leigh Taylor-Young - Victoria Wilder
- Anthony Charnota - Deliveryman
- Graham Jarvis - Ben Drootin
- William Windom - Charles Baines
- Raymond St. Jacques - Laurance Roche
- John Ireland - Zeke BaIllinger
- Adam West - David Stockwood
- René Auberjonois - Donald Springfield
- James Murtaugh - Sumner
- George Cheung - Ling
- Lee Wilkof - Stanley Friesen (uncredited)
- Eva Gabor - Renee
- Vijay Amritraj - Himself
- Peter Mark Richman - Arthur Horton
- Martina Navratilova - Herself
- Mimi Maynard - Deanne
- Greg Finley - Jeremy
- Jordan Christopher - Alex Fordham
- Cheryl Smith - Woman
- John Clarke - Tanner
- Kat Sawyer-Young - Wonder Woman
- Dennis Rucker - Jesse Cowan
- David Hayward - David Barnes
- Wynn Irwin - Lt. Grey
- Dick O'Neill - Lt. Warren
- Lily Valenty - Reader
- Carrell Myers - Karen Michaels
- Tony Brafa - Alfredo Carbona / Large Man
- Natalie Masters - Grace
- Michael Andrew - P.O. Guard
- Michael Lerner - Arthur Radner
- Nicolas Coster - Fred Brunis
- Alan Oppenheimer - Cyrus St. Cyr
- Paxton Whitehead - Patrick Burke
- Paxton Whitehead - Gordon Chumley
- Maurice Marsac - Andre
- Peter White - Customs Inspector Camden
- Joshua Bryant - Paul Villon
- Richard Johnson - Alex Constantine
- Carole Cook - Christine Garrick
- Richard Eastham - Man at Restaurant
- Paul Bryar - Gordon
- Peter Brocco - Carl
- Karen Austin - Karen Shields
- J.A. Preston - Mr. Pruitt
- Christine Belford - Victoria Dickenson
- Christine Belford - Nikki Stephanos
- Georgann Johnson - Mrs. Capello
- Stanley Grover - Fire Captain
- John Fiedler - Arnold
- Ryan MacDonald - Lester
- Rory Calhoun - Jim Bailey
- Kaz Garas - Pete
- Raymond Guth - Willie
- Michael Alldredge - Lieutenant Harry Moss
- Michael Alldredge - Lieutenant Moss
- Andrew Duggan - Loring Nichols
- Sue Ane Langdon - Laura
- Mariclare Costello - Anita Boyer
- Jim McMullan - Larry Fields
- Rodger Bumpass - Attendant
- Steve Allen - Himself
- James Hong - Holy Man
- Nick Dimitri - Henchman (uncredited)
- David Warner - Mr. Bowlly
- Derek Martin - Inspector Drootin
- Harry Fielder - PC with Drootin (uncredited)
- Michael Stainton - Bartender
- Terence Marinan - Press #2
- Randy Gray - Jonathan Hart, Jr.
- Richard Davalos - Spencer Krump
- Charles Cyphers - Lester
- Lili Haydn - Marilee
- Ron Moody - Charles Thompson
- Ron Moody - The Captain
- Raymond Mayo - Pock-Marked Man
- Denny Miller - Trammell
- Vernon Weddle - Anthony Stratham
- Arlen Dean Snyder - Fred
- Cynthia Harris - Amanda
- William Lucking - Vince
- Albert Carrier - Croupier
- Leonard Goldberg
- Aaron Spelling
- Mark Snow
David Warner interpreta a Mr. Bowlly en la serie.
Jonathan Frakes interpreta a Adam Blake en la serie.
Vincent Schiavelli hace el papel de The Beret.
Ronald Lacey interpreta a Inspector Michelot en la serie.
Michael Lerner hace el papel de Arthur Radner.
Dean Stockwell interpreta a James Francis en la serie.
Natalie Wood interpreta a Movie Star en la serie.
Robert Wagner hace el papel de Jonathan Hart.
Stefanie Powers hace el papel de Jennifer Hart.
Lionel Stander hace el papel de Max.
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