Générique complet
Johnny-on-the-Spot
Hugh McDermott
Johnny Breakes
Elspet Gray
Joan Ingram
Paul Carpenter
Paul Carrington
Jean Lodge
Sally Erskine
Ronald Adam
Insp. Beveridge
Valentine Dyall
Tyneley
Ronald Leigh-Hunt
Sir Jeremy Oulton
Vanda Godsell
Diana Townley
Graham Stark
Steve
DH
Douglas Herald
The Blind Man
AS
Adrienne Scott
Hotel Desk Clerk