Roger Moore

Lord Brett Sinclair/The General/The Admiral/Lady Agatha

Tony Curtis

Danny Wilde/Aunt Sophie Schwartz

Bernard Lee

Sam Milford

Reginald Marsh

Dr Fowler

Tony Wright

David Alton

Anne de Vigier

Nurse Crane

Gerald Sim

Dr Gordon

Johnny Briggs

Charlie

Jeremy Burnham

Scott Maskell

Joanne Dainton

Miss Lindsay

Vivien Neves

Danny's Girl

Diana Terry

Brett's Girl

Diane Cilento

Kate Sinclair

Denholm Elliott

Roland

William Rushton

Lance

Sidney Hayers

Roy Ward Baker