Kent Taylor
— Det. Lt. Bannister
Irene Hervey
— Vicki Logan
Ralph Morgan
— Dr. Clayton Maxton
Robert Armstrong
— Det. Tim Nolan
Ralf Harolde
— Halliger
William Haade
— Mike Taboni
Richard Davies
— Happy Haskins
Joseph Crehan
— Police Chief Martin O'Brien
George Watts
— Mayor Hansen
John Gallaudet
— Mr. Wilkerson
Victor Zimmerman
— Ted Lane, alias Mr. Bernard
George J. Lewis
— Joey Morrison, alias Mason
John Berkes
— Mr. Grubb
Pat O'Malley
— Police Chemist Crandall
Edward Emerson
— Frenchy Ludoc
Riley Hill
— Jim Bannister