Major (uncredited)
Colonel Strong
District Attorney McDougal
Jim Ridgeley
Col. Austin
District Attorney
Officer in Battle Sequence (uncredited)
Sheriff Matt Arnold
Sheriff
Doctor
Professor in Wagstaff's Study (uncredited)
Police Inspector
Commanding Officer
Police Captain R.L. Davis
Diner (uncredited)
Maj. Gen. Hunter
Judge Savin
Henderson
DA John F.X. Markham
Dawson
Ambassador
Westcott
Paul
Mr. Clayton
Major General
Judge Henry
District Attorney John F. X. Markham
Police Lieutenant
Dist. Atty. McKay
R.C. Grant
Mr. Semple Jones (episode 1)
Dist. Atty. John F.X. Markham (as Captain E. H. Calvert)
Col. Marsh
Gen. Marshall
Commandant
City Editor
Superintendent (Uncredited)
Edwin Palmer
Elmer Hays - the Inventor
Mr. Burton (as Captain E.H. Calvert)
Dan Winterclip
Studio Actor (uncredited)
Lord Robert Hautrive
Mr. Grayson
Richard Farquar (as Capt. E.H. Calvert)
Sidney Forbes
Gardner
Rodney Blake
Arthur Phillips
Judge Andrews
Count Ludwig von Leun-Walram
Frank Morrison
Courtland
A Drinking Buddy
Frank Johnson
John Brannon Sr.
Detective William Burke
Post Office Superintendent
Reno Bennett, another trapper
Lois's Former Sweetheart
Frank Clayton
