Glass Man (voice) (archive footage)
John Brown (3 episodes)
Howard Anderson
Duke Stuyvesant
Russell Tinsworthy
Seamus Flaherty
Z.K. Dawson
King Zharko Stepanowicz
Capt. Mark McCluskey (4 episodes)
Leo Dalcò
Henry 'Jack' Pullitzer
Malcolm Robarts
Tony Fowler (1 episode)
Maj. Wrongway Lindbergh
Old Jeremiah (1 episode)
Roger Wade
M. Nature / The Leader
Captain McCluskey
Mason / Custer
Allan
Lepridon
Michael Carlson
Daniel Grudge
Brigadier General Jack D. Ripper
Tall Convict
Self (introduction)
George Hansen
Joe Turner (1 episode)
Captain Martin Treleaven
Jay Turner / John York
Gordon Miller
John Garth
Sheriff Samuel Galt
Link Stevens (1 episode)
Lt. William Doyle
John Emmett
Self (intro/outro)
Johnny Clay
Dave Arnold
Rick Martin
Jim Bowie
Clay Hardin
Rear-Adm. John Madison Hoskins
Tim Chipman
Capt. Russ Edwards
Joe E. Conroy
Sheriff Tod Shaw
Maj. Jim Curtis (1 episode)
Johnny 'Guitar' Logan
Bart Laish
Sir Gawain
Pervis De Jong
Det. Lt. Sims
Will Hall
Capt. John Nelson
Jim Johannsen aka Barry Lester
Commander Dan Collier
Kit 'The Hawk' Gerardo
Lt. Tod Voorhees
Tex McCloud
Rev, John Burrows
Dix Handley
Joe Cooper
Bert Donner
Sterling Hayden
Tad McDonald
Adrian Ainsworth
Norman Williams