Peter Breck

as Tibor

as Steve Curan (archive footage)

as Johnny Barrett (archive footage) (uncredited)

(1 episode)

(1 episode) as Farmer Brown (voice)

as Wellington

(1 episode) as Kendal's Father

as Sheriff Hatch

as Mr. Watson

as Chambers

as Sahm-Ir

as Steve Curan

as Ross Gilmore

(1 episode) as Senator Weyburn

as King Leonidas

(2 episodes)

(12 episodes) as Jesse Keller

(1 episode)

(5 episodes) as Dr. Halverson

(1 episode) as Hull

(2 episodes)

as Dr. Paul M. Chapman

(1 episode) as Silver Cloud

as Avery Porter

(1 episode)

(1 episode) as George Noland

(1 episode) as Mike Palmer

(1 episode) as Harry Cordel

(112 episodes) as Nick Barkley

(3 episodes)

as Johnny Barrett

as Steve Curan

as Ted Grover

(1 episode) as Wiley Bondesen

(1 episode) as Dr. Ted Dietrich

(1 episode) as Sen. Orville

as Stephen Tremayne

as Russian Officer

(1 episode)

(1 episode) as Jess Carver

(1 episode) as Lafe Harkness

as Frank Brennan

(1 episode)

(2 episodes)

(1 episode) as Mark Goodwin

as Chip

as Bob Mooney

(1 episode)

(44 episodes) as Clay Culhane

(1 episode) as Ward Bannister

as Stacey Gouge

as Ben Miranda (uncredited)

(4 episodes)

(1 episode)

(2 episodes)

(1 episode)

(1 episode) as Hale Connors

(1 episode) as Clay Elliot

(1 episode)

(1 episode) as Lt. John Stickney

(4 episodes)

(1 episode) as Theodore Roosevelt

(1 episode) as Sheriff Dan Trevor

(1 episode) as William Sherwood

(1 episode) as Peter Warren

(1 episode) as Doc Holliday

(1 episode) as Sam Dixon

(1 episode) as Frank Weaver

(1 episode) as Sundance Kid

(1 episode) as Marshal

(1 episode) as Roy Bancroft

(3 episodes)

(1 episode) as Fly Hoyt

(1 episode)

(1 episode) as Jubal