Charles K. Gerrard

as Dr. Amersham

as Mr. Whitman

as Bailiff

as Martin

as Gibson

as Bert

as Lord Leopold Ambrose Plumtree (uncredited)

as Walter Harvey

as Mason

as Cmdr. Weymouth

as London Tower

as Henry Lord (as Charles Gerrard)

as Count Polinac

as Leonard Hardingham

as Crook

as DeLeon

as Robert Van Dorn

as Raymond Tyson (as Charles Gerrard)

as Scott's son

as Arthur Remsen

as Count Lazlos

as Steve

as Dr. Carl Tanzer

as Major Russett

as Reggie De Vere

as Lait Rodman

as Paul Glynn

as Count Karaloff

as Creighton Deane

as Ballard 'Bal' Barrett

as Ted Conroy

as Tom Hayden

as Clarence Topping

as Sir Peter Dare

as Saladin

as 'Streffy' (Lord Altringham)

as Jim Slade (as Charles Gerard)

as Sir Adam Judson

as Dipley Poole

as Martin Tancray

as Keith Merwyn (as Charles Gerard)

as French Pete

as John Stewart

as Ned Ormsby

as Qualters (as Charles Gerard)

as Duval

as Don Alvarez

as Baron de Ville

as William Gurson, aka 'Will the Weasel'

as Vincent Cortez

as Gordon Savage

as Van Surdam

as Theo Kameneff

as John Harland

as Thompson

as Hugh Varick

as Gerald Grant

as Wingate

as Karl Wagner

as Gordon Trenwith

as Tom Reardon

as Grand Duke Orlof

as Capt. Francis Barold

as Samuel Winter

as Charles Riddles - Ethel's Lover

as Lawrence Topham (as Charles Gerard)

as Lord Percy Brentwood

as Count Renier