The Riddle of the Stinson

Bernard O'Reilly

Joseph Binstead

John Proud

James Westray

Jean Batten

Bert Shepherd

G. A. Robinson

Claude Smyth

Edgar Johnson

Rolly Graham

Bill Fountain

Rex Boyden

Viona O'Reilly

Harry Meissner

Hazel

Smyth's Secretary

Rose O'Reilly

Keefe

Dr. Lawlor

Rhelma O'Reilly

Mrs Fountain

Binstead's Assoc.

Batten's Co-Pilot

Grace (Telephonist)