Robert Conrad
Pasquinel (12 eps)
Richard Chamberlain
Alexander McKeag (12 eps)
Raymond Burr
James Clark (12 eps)
Sally Kellerman
Lise Bockweiss (12 eps)
Barbara Carrera
Clay Basket (12 eps)
Richard Crenna
Colonel Frank Skimmerhorn (12 eps)
Donald Pleasence
Sam Purchas (12 eps)
Alex Karras
Hans Brumbaugh (12 eps)
Lynn Redgrave
Charlotte Buckland Seccombe (12 eps)
Chad Everett
Major Maxwell Mercy (12 eps)
Stephanie Zimbalist
Elly Zendt (12 eps)
Brian Keith
Sheriff Axel Dumire (12 eps)
Dennis Weaver
R.J. Poteet (12 eps)
Mark Harmon
Captain John McIntosh (12 eps)
Cliff DeYoung
John Skimmerhorn (12 eps)
Gregory Harrison
Levi Zendt (12 eps)
Pernell Roberts
General Asher (12 eps)
Timothy Dalton
Oliver Seccombe (12 eps)
Andy Griffith
Professor Lewis Vernor (12 eps)
David Janssen
Narrator (12 eps)
Lois Nettleton
Maude Wendell (12 eps)
Cristina Raines
Lucinda McKeag Zendt (12 eps)
Anthony Zerbe
Mervin Wendell (12 eps)
Merle Haggard
Cisco Calendar (12 eps)
William Atherton
Jim Lloyd (12 eps)
Stephen McHattie
Jacques 'Jake' Pasquinel (12 eps)
Robert Vaughn
Morgan Wendell (12 eps)
Jesse Vint
Amos Calendar (12 eps)
Sharon Gless
Sidney Endermann (12 eps)
Glynn Turman
Nate Person (12 eps)
Michael Ansara
Lame Beaver (12 eps)
Adrienne La Russa
Clemma Zendt (12 eps)
Robert Phalen
Rev. Holly (1 eps)
Alan Napier
Lord Venneford (1 eps)