The Mysterious Miss X

Michael Whalen

Keith Neville

Lynne Roberts

Julie Graham (as Mary Hart)

Chick Chandler

Dan 'Scooter' Casey

Mabel Todd

Annie Botts

Frank M. Thomas

District Attorney Al Ross

Regis Toomey

Jack Webster

Donald Douglas

Clarence Fredericks

Wade Boteler

Police Chief T. J. McDougal

Dorothy Tree

Alma Platt

Eddie Acuff

Pete, a Policeman

Pierre Watkin

Winslow

Harlan Briggs

Charlie Graham