Self (archive footage) (1 episode)
Bishop Finley
Harold David Dewitt (1 episode)
Prof. Norman E. Van Zandt
Chief Pilot Bob Shea
Link
Director
Major Buford (1 episode)
Anthony Fry (1 episode)
Clete Hawley (1 episode)
David Stafford
Allan Pruitt (1 episode)
Sheriff Marden (1 episode)
Major Ralph Forrester (1 episode)
Turner Leigh (1 episode)
Nels Manning (1 episode)
Dr. Carol Smith (1 episode)
Tom Stewart (segment 'Tormented')
Director (5 episodes)
Guy Guthrie (1 episode)
Director (1 episode)
Ross Porter (1 episode)
Tom Stewart
Director (1 episode)
Paul Drake (1 episode)
Director (1 episode)
Story
Director
The Writer
Director
The Fiction Writer
Russell Wade
Director
Mr. Fiction Writer
Martin Random
Col. Dobie (1 episode)
Cass Terhgune (1 episode)
Insp. Levering
William B. Travis
Introductory Narrator (voice) (uncredited)
Director
Archie Hawkins (1 episode)
Dr. David Reed
Dr. Jerry Lockwood
Director
John (1 episode)
Jerry Durrance (1 episode)
Herbert A. Philbrick (97 episodes)
Narrator (voice)
Henry Murdoch
Gerald MacTeam
John Putnam
Major Degan
Dr. Jeffrey Stewart
Herbert Philbrick (117 episodes)
Kelly McCall (1 episode)
Josef Lindquist (1 episode)
Lawrence 'Larry' Cameron (1 episode)
Alan Mitchell (1 episode)
Lt. (j.g.) Joe Rodgers
Capt. Paul Hansen
Steve Smith ("Whispering Smith")
Gerald Kean
Dr. Roland Cook
William 'Bill' King
Gil Stanton
John Goode
Ross Stewart
Martin Abbott
Charles Winslow / Charles Winslow Sr.
Nipper Wilson
Tom Farrell
Tom Manning
Owen Vail
Bill Adams
Mr. Langford
R.I.C. Kay
Tommy Van Steel
Jeff Sommerfield
Dr. Geoffrey Burton
David Hewitt
Doctor Jackson
Dr. Jimmy Krueger
Curt Stanton
Tom Gillespie
Clint Kelly
Thomas Jefferson
Geoff Montgomery
James Houston
Perry Allerton
'Pug' Braddock
Professor John Welden
Jack West
Duncan Macrae