The Steel Key

Terence Morgan

Johnny O'Flynn

Joan Rice

Doreen Wilson

Raymond Lovell

Inspector Forsythe

Dianne Foster

Sylvia Newman

Colin Tapley

Dr. Crabtree

Esmond Knight

Prof. Newman

Mark Baker

Dr. Metcalfe

Hector Ross

Beroni

Esma Cannon

Patient in Doctor's Waiting Room

Sam Kydd

Chauffeur

Michael Balfour

'The Mae McCleod' Captain

Tom Gill

Hotel Receptionist

Hal Osmond

Taxi Driver

Cyril Conway

Sgt. Cove

Arthur Lovegrove

Gilchrist