Calificación
Reparto

Herbert Rawlinson
Sanford Quest

Ann Little
Lenora MacDougal (as Anna Little)

William Worthington
Prof. Ashleigh / Lord Ashleigh / Lady Ashleigh

Frank Lloyd
Ian MacDougal

Mark Fenton
Inspector French

Laura Oakley
Laura - Quest's Assistant

Frank MacQuarrie
John Craig

Joe Martin
Chimp