- Adam Williams - Harry Gulliver
- Robert McQueeney - Rev. Matthew Webster
- Jack Nicholson - Tony Morgan
- Phyllis Coates - Laura Seldon
- Chad Everett - Alan March
- Chad Everett - Chris Randall
- Paula Raymond - Lady Blanche Carleton
- Paula Raymond - Anne Hunter
- Jean Willes - Olivia McKay
- Dyan Cannon - Julie Brent
- Frank Albertson - Paul Charring
- Frank Albertson - Wally Gibbs
- Max Baer Jr. - Harry 'Stinger' Hurley (uncredited)
- Kent Taylor - Adam Kendricks
- Mary Tyler Moore - Susan Hart
- Tris Coffin - Dan Woodruff
- Robert Colbert - Johnny Kane
- Efrem Zimbalist Jr. - Stuart Bailey
- Jack Buetel - Dr. Eliot (as Jack Beutel)
- John Clarke - Jablonsky
- Rush Williams - Roy Hondine
- Karl Weber - John Hunter
- Sharon Hugueny - Kathie Nelson
- Lloyd Kino - Mechanic (uncredited)
- Peggy McCay - Lucy McDowell
- Peggy McCay - Helena Ogden
- Lisa Lu - Lili
- Alberto Morin - Jean Martin
- Max Showalter - Ralston
- Mel Prestidge - Lt. Danny Quon
- Don 'Red' Barry - Harry Cannon
- Don 'Red' Barry - Roy Briggs
- Robert Clarke - John Miles
- Robert Clarke - Joe Wheaton
- Mark Miller - Victor Jason
- Jackie Coogan - Mack Stanley
- Gerald Mohr - Roger Alston
- Gerald Mohr - Martin Haney
- Jay Novello - Louis Bon
- Fred Stromsoe - Barman (uncredited)
- Myrna Fahey - Della Kandinsky
- Myrna Fahey - Laura Steck
- Myrna Fahey - Nora Cobinder
- Myrna Fahey - Kay Laniel
- Russ Conway - Boyle
- Russ Conway - Paul Marron
- Paul Burke - Brad Finley
- Don C. Harvey - Harry Sanderson
- Don C. Harvey - Hawkins
- Frank De Kova - Pete Dailey
- Warren Oates - Al
- Weaver Levy - George Moon
- John Indrisano - Brownie (uncredited)
- Tina Cole - Sunny Day
- Ruta Lee - Stella Hughes
- Ruta Lee - Laura Lytton
- Elizabeth MacRae - Tina Billings
- Claude Stroud - Henry
- Claude Stroud - Mr. Millford
- Beverly Washburn - Trudi Alston
- Karl Held - Mr. Stanford
- Bill Quinn - Col. Conway
- Bill Quinn - Eric McKay
- Dawn Wells - Lois Corey
- William Woodson - Steve Talbot
- Elaine Devry - Doreen Talbot
- Chris Robinson - Ted Allen
- Vince Edwards - Dr. Sam Casey (uncredited)
- Stella Stevens - Carol Judd
- Maura McGiveney - Ginger (uncredited)
- Patricia Driscoll - Mavis Purcell
- Kevin Hagen - Brother Love
- Oliver McGowan - Mitchell Weir
- Jacqueline deWit - Agnes
- Jack Hogan - Eddie Croft
- Virginia Gregg - Hilda Barton
- Virginia Gregg - Koko Kate
- Larry Chance - Lono Williams
- Arthur Franz - Harry Lytton
- Arthur Franz - Paul Hoyt
- Anne Whitfield - Jennie Taggart
- Anne Whitfield - Allison Kendall
- Anne Whitfield - Cathy Barton
- Frank Ferguson - Capt. Joe Taggart
- Robert Kino - Martin Fong
- Robert Kino - Garage Manager
- Jean Allison - Cora Demming
- Jean Allison - Mary Potts
- John Cliff - Fish
- Dan Tobin - Timmy Yarborough
- Charles Arnt - Fleems
- Sue England - Receptionist
- Richard Long - Rex Randolph
- J. Pat O'Malley - Raymond
- Aki Aleong - Sam Sheong
- Diane McBain - Liz Downing
- Diane McBain - Charlene 'Charley' Boggs
- Abby Dalton - Julie Gant
- Milton Frome - Dr. Hammer
- Gary Vinson - Somerset Jones
- Suzanne Lloyd - Lois Brindisi
- Leon Tyler - Jimmie Branscomb
- John Baer - Alan Terry
- John Baer - Victor Brindisi
- Olive Sturgess - Nina McKay
- Charles Bateman - Ted Brown
- Richard Benedict - Eddie Coyle
- Lewis Charles - Gus
- John Daheim - Barney
- John Daheim - Floyd Hollis
- Forrest Compton - Robin Flynn
- Dan Seymour - Felix
- William T. Orr
Jack Nicholson hace el papel de Tony Morgan.
Vince Edwards interpreta a Dr. Sam Casey (uncredited) en la serie.
Adam Williams interpreta a Harry Gulliver en la serie.
Claude Stroud interpreta a Mr. Millford en la serie.
Robert Conrad hace el papel de Tom Lopaka.
Anthony Eisley interpreta a Tracy Steele en la serie.
Poncie Ponce interpreta a Kim Quisano en la serie.
Connie Stevens interpreta a Cricket Blake en la serie.
Grant Williams interpreta a Greg MacKenzie en la serie.
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