Henderson Wheatley (1 episode)

Dr. Karl Krüger (1 episode)

The Colonel

Calvin Cutter (1 episode)

Phillip Royce (1 episode)

Clint Wilkens (1 episode)

Arthur Poor (1 episode)

George Ross

John Ericson (uncredited) (1 episode)

Captain Burke (1 episode)

Talmudge

Dr. Gregg Martin

(1 episode)

Mike McCord (1 episode)

Shelby (1 episode)

Murray

Frank Pearson (1 episode)

Morris Melborne (2 episodes)

Morris Melborne

Billy Riddle

Col. Heller

Jack Bonham (1 episode)

Fred (1 episode)

William Huston / Will Hunter / 'Black Talisman'

Fred Norwood

Dutch Holland

Sgt. Paul Devlin (1 episode)

Blake Heller

Don Diego Alvarado / Diego Owens

Hardy Smith (1 episode)

George Steele

Sam Bolt (30 episodes)

Lars (1 episode)

Ed Cunningham / Transformed Pan

Kir

(1 episode)

Vince Dagen (1 episode)

Wade Hollister (1 episode)

Lieutenant Krüger

Ray (1 episode)

Charles Arthur 'Pretty Boy' Floyd

Jeff Hazen (1 episode)

Twist Thompson (1 episode)

(1 episode)

(2 episodes)

Brom Bones (1 episode)

Hiawatha (1 episode)

Sheriff Barney Wiley

Sgt. Peter Barkley (1 episode)

Lt. Niles Ord

Brockie Drummond

Will Ruxton (1 episode)

Linc Mallory (1 episode)

Lane Baker (1 episode)

Andy McCall (1 episode)

(2 episodes)

Johnny Hanneman

Tom Kittredge

William Herrick (1 episode)

Lindy Jackson (1 episode)

Cameron Lacey (1 episode)

Matt Wilson (1 episode)

Gunner's Mate Eddie Younger (1 episode)

Eddie Markham (1 episode)

Paul (1 episode)

(2 episodes)

Will Hadley (1 episode)

Roy Hendricks (1 episode)

Carl Stanton (1 episode)

(1 episode)

(1 episode)

Red (1 episode)

Wonder Boy Nick (1 episode)

Jack Slade

(1 episode)

Leon Patterson (1 episode)

Joe Loring (1 episode)

Pete Wirth

Donald Knowland

Count Von Asterburg

James Guest

Reporter (uncredited)

Naval Ensign (uncredited)

(1 episode)

Philip Cass

(1 episode)

Anderson (1 episode)

Mike (1 episode)