Kieron Moore
— Mike Merriworth
Sarah Lawson
— Gwyneth Thomas
Greta Gynt
— Mary Griffin
Mervyn Johns
— Captain Snow
Harry Fowler
— Charlie Barton
Anthony Newley
— Fred Starling
John Charlesworth
— Andrew Griffin
Brian Roper
— Tony Mullins
Edwin Richfield
— Number One
Ram Gopal
— Dr. Tigara
Russell Napier
— Raymond Curtis
Mary Kerridge
— Mrs. Snow
Don McCorkindale
— Tubby