Francis, King of France

Commodore

Self (archive footage)

Alice's Father

Jonathan Maulle

Dr. George Lund

Sgt. Major Pierre Benet

Al Reynolds

Hank Scott

Kenneth Bradley

Dr. Bruce Merritt

Duke Bradley

Major Gregory Keen

Rev. Fulton

Steve Ward

Rick

Frank Daniel

'Dakota' Jack Gaines

Dr. Chet Walker

Mark Russell

Stanley Blair

Frank Brooks

Stacey Wyatt

Dr. Mark Williams

Jerry Russell

Dave Markson

Chief Investigator Paul Reagan

Mike Lassiter

Lee Kemper

Malcolm Bradley

Lt. Phillips

Don Adams

Dr. John Waldron

Tom Davison

Larry Wilson

Buzz Doyle

Jim 'Brooklyn' Gannon

Hugh Harkness

Bill Wyatt

John Fairbanks

Peter Wiggins

Blaney Lewis

Capt Allen Danton

Rex

Bill Dixon

Hal McByrne

Jeff Stewart

Taylor Henry

Jackra the Magnificent

Lt. Rhody Graves

Jack Stoddard

Joe

Constable Thornton

Bill Crane

Briggs

Charlie Webster

Dennis Crane

Bruce Eaton

Dan Barton

Call Boy (uncredited)

Lt. Larned

Dick Randolph

Hunk Jordan

Murph

Frank Oliver

Fred

Mr. Weems

(uncredited)

Reporter (uncredited)

Johnny Jordan

Interne

Powder, Henchman

Police Garage Mechanic

Elevator Passenger

Silk Patterson

Harry Vay

Buck Hogan

Salesman (uncredited)

Pilot

Captain Reid

Minor Role

Midshipman Jepson