Esmond Knight
— Pete Borden
Lilli Palmer
— Natacha
Cecil Parker
— Assistant Commissioner
George Merritt
— Detective Inspector Cardby
Richard Grey
— Detective Inspector Hall
Raymond Lovell
— Delaney
Graham Soutten
— Clancy (as Ben Soutten)
Peter Gawthorne
— A.D. Newall
Wyndham Goldie
— Conway Addison
Jane Millican
— Lady Sybil
Stella Arbenina
— Lady Mead
Bellenden Clarke
— Lord Mead
Sara Allgood
— Jewel Thief
Wally Patch
— Andrew Purvis