Générique complet
The Secret Call
Richard Arlen
Tom Blake
Peggy Shannon
Wanda Kelly
William B. Davidson
Jim Blake
Charles Trowbridge
Phil Roberts
Ned Sparks
Bert Benedict
JK
Jane Keithley
Grace Roberts
Selmer Jackson
Matt Stanton
Jed Prouty
Jim Neligan
Charles D. Brown
Bob Barnes
Harry Beresford
Frank Kelly
EB
Elaine Baker
Vera Lorraine (uncredited)
Claire Dodd
Maisie (uncredited)
Patricia Farr
Ellen (uncredited)
PI
Perry Ivins
Bill, Jim Blake's Secretary (uncredited)
FM
Frances Moffett
Gwen Allen (uncredited)
Larry Steers
Fillmore (uncredited)
