as Durkin

as Lieutenant Patten

as Prof. Hobart Zorn

as Lord Markham (uncredited)

as Alex Ballard

as Joe Heller / Lew Heller (uncredited)

as Bourbon Drinker on Train

as Jim Murray (archive footage)

as Captain Amos Karnes

as Detective

as Fight Announcer

as Tony

as Henchman Ace Barko

as Brady

as Tony

as Freighter Mate [Chs. 7-8]

as Army Officer

as "Trigger" Stratton

as Kimble

as Gregory Stone

as Fred Burns

as Argo

as Manning

as John Ritter

as Benson

as Carson

as Lt. Patten

as Manny

as Jim Dawson

as Tarnak

as Wallace

as Weaver

as Blackie Miller

as Tarnak

as Stevens, gang chemist

as Jim Murray

as Karlotti

as Lieut. Douglas Thompson

as 'Lucky' Wilder

as Kincaid

as Ace Morgan

as Bob Arnold

as Durkin

as Walton

as Brophy

as Murdock

as Julie's Kidnapper (uncredited)

as Wheeler

as Cmdr. Lawson

as Henry DeLong

as Hardy

as

as Duval

as Doane

as Panther Fielding

as Gangster at Lodge Wanting to Quit (uncredited)

as Duke Foster

as Lord Argo

as Jim Thorne

as Joe

as Inspector A.R. McCrae

as Tracy

as Henry Jethrow

as Kirby

as Toledo Eddie Marchetti

as Kirby

as Sam

as Abbott

as Gill Brown, the Horse Owner

as Poe Powers

as Spike Maguire

as George

as Ed Wilder

as Sheriff Clem Norton

as Laughing Maxey

as Major Jenkins

as Joe

as Pete Stenner

as Spike

as Nick Grindell

as Philip Wells

as Holt Norbo - Bank Cashier

as Roger Bradley

as Jim Fremont

as Bob Russell

as Hatch Engall

as Judson Ward

as Utah Becker

as Shanghai Morgan

as

as Moreland

as 'Poker' Wilson

as Mile-Away-Harry

as 'Lucky'Jim Seymour

as (uncredited)

as Steve

as Ramsey Kane

as Wyman

as Repen

as Lawrence Mayfield (uncredited)

as First Mate (uncredited)

as Willie Durant aka Robert Wallace

as Anton Lebau

as Porter

as Manager

as Nicholay

as John Bland

as Mike Corney

as Van

as Hawk Miller

as Eddie 'Mile-Away' Skeeter Carlson

as The captain

as Dr. Gordon White

as Kerrigan

as John Evans

as Jack Raymond

as Director

as Winnie

as Clint Mowbray

as Slippy McGee

as Delmar Spavinaw

as (uncredited)

as Kurt Walters

as Dr. Jack Martin - the Man in the Case

as 'Dapper Bill' Ballard

as Willy St. John

as Capt. Carlisle Pemberton

as Paul Armitage

as Bobby Ralston

as Peter Burke

as Stephen Hartley

as Burr Gordon

as Herbert Thornhill

as Dick Randall

as Bertram Van Twiller

as Basil Demarest

as Pierre

as Rowdy Townsman (uncredited)

as Wynne Garlan

as George P.A. Jones

as Chief Swift Wing

as Ned Halton

as Weary

as Billy Silver

as Willie Clark

as Etienne Cloquet

as Weary

as Jan, the Trapper

as Billy McVeigh

as Shotgun Jones

as The Bronco Kid, alias of Drury

as The Revenue Officer

as Concho

as Dreamer

as Real Montgomery Irving

as Harold - John Sharon's Wayward Son