Walter Pidgeon as Nick Carter

Donald Meek as Bartholomew

Kaaren Verne as Pat Evans (as Karen Verne)

Edward Ashley as Cortland Grand

Joyce Compton as Christine Cross / Her Twin Sister

Tom Conway as Andrew Hendon

George Lessey as Senator Monrose

Dorothy Tree as Kathe

Frank Reicher as Dr. Crattan

Chill Wills as Sheriff Beckwith

George Watts as Judge Whitmore

Byron Foulger as Kuse

William Tannen as Gus

Milton Parsons as Brock

Tom Neal as Steve - Pilot

Lucien Prival as Brucker

Judith Allen as 'Ruffles' Macklin

Hooper Atchley as Mark - Party Guest

Arthur Aylesworth as Cell Block Member Against Killing

Barbara Bedford as Grand's Maid

Leonard Carey as Sutter - Grand's Butler

George DeNormand as Second Henchman in Fight with Bartholomew

Jimmie Dundee as Truck Driver Henchman

Jack Foss as Boy Who Is Killed

Bud Geary as Taxi Driver

James Guilfoyle as Munn

Edward Hearn as Man in Monrose's Office

Cy Kendall as Harrigan - House Detective

William Lally as Second Man in Monrose's Office

Perc Launders as Henchman

Hal Le Sueur as Al - Co-Pilot

Warren McCollum as Boy

Philip Morris as Fourth Motorcycle Policeman

Virginia O'Brien as Lucille LaVonne

Ted Oliver as First Motorcycle Policeman

Eddie Parker as Second Motorcycle Policeman

Cyril Ring as Party Guest

Cap Somers as Man at Meeting

Larry Steers as Party Guest

Harry Strang as Third Motorcycle Policeman

Charles Sullivan as Henchman in Fight with Bartholomew

Grady Sutton as Buster - Chris' Boyfriend

Kay Sutton as Texas O'Keefe

Celia Travers as Cissy Minch

Dale Van Sickel as FBI Agent Cuffing Dr. Crattan

Charles Wagenheim as Ricoro - Flight Attendant

Lloyd Whitlock as Party Guest

Anne Wigton as Miss Shakespeare

Duke York as Enforcer at Cell Block Meeting