Undercover Doctor

Lloyd Nolan

as Robert Anders

Janice Logan

as Margaret Hopkins

J. Carrol Naish

as Dr. Bartley Morgan

Heather Angel

as Cynthia Weld

Broderick Crawford

as Eddie Krator

Robert Wilcox

as Tom Logan

Richard Carle

as Elmer Porter

Stanley Price

as Johnny Franklin

John Eldredge

as Gordon Kingsley

George Meeker

as Dapper Dan Barr

Raymond Hatton

as Dizzy Warner

Phil Warren

as Spats Edwards

Paul Fix

as Monk Jackson

Richard Denning

as Frank Oliver

Paul E. Burns

as Mack Belton

Paul Stanton

as Courtney Weld

Clem Bevans

as Sam Whitmore

Charles Trowbridge

as Lt. Watson

Charles Williams

as Pinky Valkus

Rosemary Theby

as Guest (uncredited)