- Andrew Prine - Ernie Norton
- George Chandler - George Bentley
- Jack Lord - John Trask
- Bettye Ackerman - Dr. Pat Manners
- O.J. Simpson - Onlooker (uncredited)
- Tisha Sterling - Wanda
- Tina Louise - Candy
- Martin Sheen - Johnny
- Mort Sahl - Len Leavitt
- Fritz Weaver - Paul Friedland
- Ron Ely - Scott Bradley
- David Soul - Roy Harris
- Dana Andrews - Courtenay Eliot
- Michael Fox - Dr. Leonard Marcus
- Mort Mills - Mike Hennessy
- Ben Wright - Dr. Leon Chaffee
- Diane Ladd - Peggy Barnard
- Florida Friebus - Middle-Aged Woman
- Jess Walton - Jennifer Eliott
- Frank Maxwell - Lt. Mike Rourke
- Meg Wyllie - Miss Westcott
- Joel Grey - Mike Yeager
- Len Lesser - Frank Bender
- Paul Fix - Cripple
- Neva Patterson - Gerry Sindall
- Francine York - June
- John Hoyt - Malcolm Henderson
- Dana Elcar - Bill O'Brien
- Nicholas Colasanto - Mike Sellino
- Dabney Coleman - Daniel Leary
- Susan Saint James - Elaine Moreau
- Ellen Corby - Agnes Fairchild
- Carolyn Jones - Justine Cross
- Mako - Phil Tsang
- Byron Morrow - Mr. Gregory
- Hermione Gingold - Ernestine Mugford
- Desi Arnaz - Dr. Juan Domingo
- Oscar Beregi Jr. - Stefan
- David Cassidy - Danny Goodson
- Harrison Ford - Tom Stowe
- Dana Wynter - Tracy Oliver
- Sherry Lansing - Marcia Yeager
- Lynn Hamilton - Mrs. Johnson
- Lynn Hamilton - Nurse Clark
- Bill Bixby - Dr. Gallin
- Jack Hogan - Ed Barnard
- Jack Soo - Joe Lee
- James Gregory - Herb Jarman
- Joan Staley - Millie O'Neil
- Virginia Gregg - Ellen
- Ed Lauter - Sergeant
- James Olson - Marvin Bosner
- Stuart Nisbet - Luther Carson
- Ned Romero - Monsignor
- Russ Conway - Howard Wycoff
- Harold Gould - Martin Geller
- Émile Genest - Frank Rousseau
- Victor Jory - Wally Stowe / Frank Tomachek
- Ann Doran - Harriet Miles
- Mike Farrell - Bellhop (uncredited)
- Peter Mark Richman - Daryll Frazer
- Paul Mantee - Prof. Bradford Link
- Kent McCord - Kellogg
- Susanne Cramer - Tina Masson
- Jack Kruschen - Willie Busch
- Anne Seymour - Mother Carrie (uncredited)
- Ralph Manza - Emilio
- John Doucette - Ralph Hanson
- Bill Quinn - Medical Examiner
- Herbert Anderson - Leon Karp
- William Smithers - Frank Rich
- John Mitchum - Slim
- Cliff Potts - Mike Doyle
- Karl Swenson - Vet
- Frank Aletter - Frank Bolan
- Nancy Malone - Lydia Zorin
- Robert Webber - Sam Burton
- Myrna Loy - Andrea Wollcott
- Donnelly Rhodes - Joe Varona
- Kathleen Freeman - Helga
- Kim Hunter - Athena Champion
- Anthony Eisley - Dr. Furness
- Donald Moffat - Daniel Keyes
- Michael Conrad - Tracy
- Madlyn Rhue - Margaret Blackwell
- Madlyn Rhue - Kate Dunhill
- William Windom - Judge Lawrence Van Buren
- David Carradine - Luke Roberts
- David Carradine - Pogo Weems
- David Carradine - Frank Carlson
- James McCallion - Harrington
- Gene Raymond - Marcus Weathers
- Gene Raymond - Charles Huff
- Joseph Campanella - Curtis Whitney
- Joseph Campanella - Raymond Otis Baker
- Phillip Pine - Stark
- Phillip Pine - Joe Rossi
- Henry Beckman - Durand
- J. Pat O'Malley - Tim Hawkins
- Clu Gulager - Jack Brody
- Alan Napier - John
- Milton Berle - Ross Howard
- William Smith - Larry
- Milton Frome - Dan King
- Cesar Romero - Tony Hudson
- Marsha Hunt - Sissy Cardwell
- Antonio Fargas - T.D. Harris
- Anthony Zerbe - Vincent Wiertel
- Greg Mullavey - Kenny Hall
- Elena Verdugo - Liz Cervantes
- Judith Brown - Terry
- Steve Carlson - Johnny Foster
- George Wyner - First Clerk
- Laurie Mitchell - Carol Phillips
- Sarah Marshall - Jan Carlin
- George Keymas - Stulka
- Ed Haskett - Minister/Medium (uncredited)
- Hank Stohl - Bank Teller
- Kay Peters - Charlotte Foster
- Al Bain - Bum (uncredited)
- Simon Oakland - Ted Berringer, Sr.
- Simon Oakland - Elton Ferris
- Bob Hastings - George Norene
- Frank Corsentino - Al Cochran
- Al Hopson - Assistant Vet
- Michael Christian - Roger
- Michael Christian - Tim Patterson
- Susan Howard - Jo Lyons
- Eve Brent - Mrs. Creighton
- Paul Lambert - Joe McCraken
- Sue Ane Langdon - Rhea Prentiss
- Eve McVeagh - Manager
- John Ericson - Fred
- Stacy Harris - Gordon
- Guy Way - Lupo
- Jackie Coogan - Buster Logan
- Jackie Coogan - Sam McGoff
- James Drury - Al
- Tom Hallick - Billy Mathers
- Cliff Emmich - Jerry Barker
- Michael Lerner - Joe Yarby
- Michael Lerner - Adrian Father
- Lynnette Mettey - Vera
- Frank Parker - Vic Hancock
- Jan Shepard - Adrienne May
- Cyril Delevanti - Commodore Wallace
- Robert Donner - Ralph Burns
- Harry Harvey - Day Clerk
- Harry Harvey - 1st Grocer
- Harry Harvey - Elderly Man
- Nick Benedict - Police Driver
- Nick Benedict - Driver
- William Shatner - Bill Parkins
- William Shatner - Marty Jessup
- Lew Palter - Tony the Bartender
- Robert Osterloh - Willard Parks
- Anne Francis - Karen Gillis
- Titos Vandis - Anton Bolen
- Ted Cassidy - Wrestler
- Barbara Bosson - Katie (uncredited)
- Wynn Irwin - Landlord (uncredited)
- Suzanne Pleshette - Shelly Kingman
- Lauren Gilbert - Homicide Sergeant
- Robert Ito - Sgt. Ikiski
- Robert Ito - Harry (uncredited)
- Edward Binns - Charlie Culver
- Charles Drake - Mr. Thomas
- Bill Fletcher - Ellis Stark
- Bill Fletcher - Marston
- Bill Fletcher - Arnie Simms
- Bill Fletcher - Wolf
- Bill Fletcher - Frank Hansen
- Jay Novello - Carl Sloan
- Jack Ging - Dewey
- Kevin Dobson - Young Marine
- Ramon Bieri - Frank Clausen
- William Lanteau - Arnold Beckman
- Rudy Challenger - Twilling
- Gene Lyons - The Commissioner
- Gene Lyons - Commissioner Dennis Randall
- George Cisar - George Tubbs
- Joe Mantell - Sid Leppich
- Joe Mantell - Franklin
- Earl Holliman - Gordy Brokaw
- Don 'Red' Barry - Paul Farrell
- Don 'Red' Barry - Walter Prudy
- Don 'Red' Barry - Warrant Officer Harry Wilke
- Don 'Red' Barry - Capt. Dennis Barnes
- Don 'Red' Barry - Lt. Tom Pierce
- Luana Anders - Nina Loring
- Warren Parker - Neighbor
- Joshua Bryant - John Moore
- Joshua Bryant - Reuben Colter
- Michael Callan - Cpl. William Eller
- Diana Muldaur - Capt. Pauline Daniels
- Richard Anderson - Dean Glenville
- Richard Anderson - Darren Sanford
- Richard Anderson - Walter Conway
- Richard Anderson - Rod Ballard
- Judy Carne - Ethel Manning
- Vera Miles - Barbara Richards
- Vera Miles - Barbara Jones
- Jessica Walter - Amy Prentiss
- Jacqueline Scott - Felice Evans
- Pippa Scott - Crystal Mason
- John McLiam - Father Holt
- John McLiam - Trash
- Mario Roccuzzo - Benny Folger
- James Murtaugh - Terry Langley
- Ji-Tu Cumbuka - Obbie
- Julie Gregg - Vivian Dorsey
- Kenneth Tobey - Mahoney
- Kenneth Tobey - Lt. Reynolds
- Jordan Rhodes - Dr. Thompson
- Ken Lynch - Russ Quinn
- Larry J. Blake - Auctioneer
- Alma Platt - Martha Bently
- Jean Allison - Louise Mowbray
- Jean Allison - Helen Borden
- Jimmy Joyce - 1st Dealer
- Sandy Ward - Sgt. Don Borden
- Sandy Ward - Pilot
- Sandy Ward - Ph. D
- Sandy Ward - George (uncredited)
- John McKee - 2nd Dealer
- Jonathan Goldsmith - Marty Rogers
- Jonathan Goldsmith - Tony Watts
- Dallas Mitchell - The Sergeant
- Penny Santon - Grocer's Wife
- Penny Santon - Madame Kapati
- Frank Gerstle - Eddie Burns
- John Goddard - Ernie Greco
- Bob Turnbull - Beeker
- Don Ross - Lab Technician
- Don Ross - Det. Baker (uncredited)
- Don Ross - Police Technician
- Pat Priest - Goldie
- Joan Swift - Police Clerk
- Lee Miller - Man in Lobby
- Lee Miller - 1st Man
- Lee Miller - Policeman (uncredited)
- Lee Miller - Shipper (uncredited)
- Len Wayland - Shaller
- Len Wayland - Lieutenant Thomas
- Len Wayland - Sgt. Morrison
- Simon Scott - Jim Cardoff
- Simon Scott - John Lovell
- Simon Scott - Warren Stuart
- Val Bisoglio - Charley
- Val Bisoglio - Waffles
- John Saxon - Eric Saginor
- Ross Martin - Arthur Damien
- Art Balinger - Walter Field
- Tom Simcox - Brian Turner
- Tom Simcox - George Huff
- Mel Scott - Sam Noble
- Jim Creech - Detective Garber
- Will J. White - 2nd Detective
- Jackie Russell - Kathy
- James McEachin - Luther
- James McEachin - Jerry Maxon
- Ena Hartman - Millie Roberts
- Ena Hartman - Janet Holmes
- Bruce Lee - Leon Soo
- Marjorie Bennett - Hotel Clerk
- Troy Donahue - Father Dugan
- Roger Perry - Lee Paxton
- Roger Perry - Keating
- Roger Perry - Brodie
- Roger Perry - Mike Sidney
- Margaret O'Brien - Louise Prescott
- Bob Harks - Funeral Director (uncredited)
- Bob Harks - Reporter (uncredited)
- Bob Harks - Tow Truck Driver (uncredited)
- Bob Harks - Detective (uncredited)
- Brenda Scott - Carol Dillon
- David Sheiner - Doctor
- Gilman Rankin - First Watchman
- Gilman Rankin - Junkyard Bum (uncredited)
- Paul Sorensen - Sgt. Jackson
- Paul Sorensen - Plainclothesman
- Bill Zuckert - Fred Cramer
- Bill Zuckert - Pete Wilson
- Morgan Paull - Martin Lowell
- Morgan Paull - Pete Karns
- Lynn Borden - Gloria James
- Charles Dierkop - Palo
- Lewis Charles - Phil Lewis
- Joseph Mell - Mr. Pipe
- Joseph Mell - Matty
- Scott Glenn - Lonnie Burnett
- Scott Glenn - Frank Lenox
- John Pickard - Ned Morse
- John Pickard - Fire Lieutenant
- Antoinette Bower - Andra Bellingham
- Antoinette Bower - Judy Klaven
- Cliff Norton - Henry Brink
- Harold J. Stone - Babe Alben
- Harold J. Stone - Jim Connolly
- Harold J. Stone - Mike Martine
- William Lucking - Thomas Flagg
- Pamela Hensley - Debbie Hinden
- Joe E. Tata - Garvey
- Jack Kelly - Bobby Tucker
- Jack Kelly - Johnny Corman
- Linden Chiles - Jeff Hanson
- Linden Chiles - Ray Leonard
- Belinda Montgomery - Marla Cardwell
- Kip Niven - Joey
- Kip Niven - Phil Wagner Jr.
- Ray Montgomery - Sam (uncredited)
- Ray Montgomery - Sgt. Boardman
- Leo G. Carroll - Trevor Winthrop
- Frank Puglia - Jose Fuente
- Anne Schedeen - Vicki
- William Campbell - Walter Booth
- Mitch Vogel - Jerry Jessup
- Anthony James - The Neighbor
- Christine Belford - Sue Broderick
- M. Emmet Walsh - Telegraph Clerk
- James B. Sikking - Voice Print Officer Jay
- Barbara Rush - Mme. Jabez
- Barbara Rush - Lorraine Simms
- Marion Ross - Shirley Petrizzi
- Marion Ross - Gloria Bosner
- Marion Ross - Mrs. Bartell
- Ray Walston - Walter Butler
- James Dobson - Clerk
- Robert B. Williams - Tom McMurtry (uncredited)
- Robert B. Williams - Desk Clerk (uncredited)
- L.Q. Jones - Lt. Mark Cardiff
- L.Q. Jones - Harry Ashton
- Kaz Garas - Owen Riggs
- Vince Howard - Deputy Watson
- David McLean - Gus Hadley
- Richard Basehart - Noel Seymour
- Tim Considine - Richie
- Dan O'Herlihy - Arthur Justin
- Carla Borelli - Jan Gaylord
- Carla Borelli - Susan Saginor
- George DiCenzo - Joe
- George DiCenzo - Paul Benson
- David Wayne - Dr. Ian Rice
- Michael Anderson Jr. - Jeff Hanley
- Virginia Christine - Esther Hawkins
- George Kennedy - Father Samuel Cavanaugh
- Murray MacLeod - Mickey
- Murray MacLeod - Josh Williams
- Robert Sampson - Father Dennis McMurtry
- Kermit Murdock - Publisher
- Charles Seel - Sacristan
- Ron Masak - Michaels
- Thomas Bellin - Mr. LaPlan (uncredited)
- Don Eitner - Police Sketch Artist (uncredited)
- Max Gail - Patrolman (uncredited)
- Robert Shayne - Father Adam Wendell (uncredited)
- Paul Bryar - 2nd Driver
- Paul Bryar - Henry Volkel
- Paul Bryar - Building Manager
- Ray Ballard - Mr. Rowling
- Ray Ballard - Photographer (uncredited)
- Ray Ballard - Dispatcher
- Ray Ballard - Gus (uncredited)
- Barry Livingston - Johnny Garber
- Ted Gehring - Mr. Willard (uncredited)
- Ted Gehring - Decker
- Elizabeth Ashley - Laura Keyes
- James Luisi - Mike Purcell
- Virginia Paris - Helen Ortega
- Gene Tyburn - Hagan
- Milt Kogan - Bernstein
- George Murdock - Capt. Walter Finch
- George Murdock - Victor Cramer
- George Murdock - FBI Agent Torrence
- George Murdock - Phil Wagner
- George Murdock - Sheriff
- George Murdock - Lee R. Anderson
- George Murdock - Jim Peters
- Julie Adams - Norma Howard
- Jean Howell - Woman
- Cloris Leachman - Molly Strong
- Olive Sturgess - Nurse
- Peter Brocco - Father Miles
- Peter Brocco - Doctor
- Alan Hale Jr. - Laurence Drescher
- Tyne Daly - Joanna Leigh
- Marilyn Erskine - Mrs. Gordon
- William Katt - Jimmy
- Gregory Sierra - Billy Trona
- Gerald S. O'Loughlin - Lt. Jimmy Burwell
- Arthur Tovey - Priest (uncredited)
- Arthur Tovey - Professor
- John Cliff - Johnson
- John Cliff - Police Sergeant
- Harold Ayer - Clemmons
- Rita Garrison - Nurse
- Kiel Martin - Billy Meeker
- Robert Patten - Dr. Carl Banks
- Alan Hewitt - Carter
- Edward Faulkner - Frank Wickham
- Marshall Thompson - Tom Ames
- Irene Hervey - Margaret Whitfield
- Quinn K. Redeker - Paul Fulham
- Lee Grant - Francesca Kirby
- Farley Granger - Mitch Kirby
- Dick Cherney - Photographer (uncredited)
- Clifton James - Frank Bollo
- Richard Bull - Dr. Ender
- Read Morgan - Police Officer
- Ernest Harada - Prosecutor
- Robert Emhardt - Harvey Williford
- Norman Leavitt - Peter Ferguson
- George Sawaya - Cabbie
- Douglas Benton
- Cy Chermak
- Joel Rogosin
- Jeannot Szwarc
- Albert Aley
- Winston Miller
Harrison Ford hace el papel de Tom Stowe.
Cesar Romero interpreta a Tony Hudson en la serie.
Kent McCord hace el papel de Kellogg.
George Murdock interpreta a Victor Cramer en la serie.
George DiCenzo interpreta a Paul Benson en la serie.
M. Emmet Walsh interpreta a Telegraph Clerk en la serie.
Leo G. Carroll hace el papel de Trevor Winthrop.
Edward Binns interpreta a Charlie Culver en la serie.
Ken Lynch hace el papel de Russ Quinn.
Scott Glenn interpreta a Frank Lenox en la serie.
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