Cast

• Lionel Jeffries — Arthur Lee
• Avice Landone — Mary Lee
• Jack Watling — John Lee
• Patricia Owens — Connie Lee
• Brian Worth — Michael Collins
• Gordon Jackson — Leonard
• Arthur Lowe — Wilkins
• Cyril Chamberlain — Clarkson
• Erik Chitty — cast
• Frazer Hines — Boy
• Alastair Hunter — cast
• John Pike — Boy
• Peter Swanwick — cast

Directing

• Henry Cass — director

Editing

• Maurice Rootes — editor

Camera

• Monty Berman — director of photography

Sound

• H.C. Pearson — sound recordist

Production

• Monty Berman — producer
• Robert S. Baker — producer

Art

• John Stoll — art direction

Crew

• John Gilling — script