Roger Moore
— Lord Brett Sinclair (archive footage)
Tony Curtis
— Danny Wilde (archive footage)
Bernard Lee
— Sam Milford (archive footage)
Reginald Marsh
— Dr Fowler (archive footage)
Tony Wright
— David Alton (archive footage)
Anne de Vigier
— Nurse Crane (archive footage)
Gerald Sim
— Dr Gordon (archive footage)
Johnny Briggs
— Charlie (archive footage)
Jeremy Burnham
— Scott Maskell (archive footage)
Joanne Dainton
— Miss Lindsay (archive footage)
Vivien Neves
— Danny's Girl (archive footage)
Diana Terry
— Brett's Girl (archive footage)
Diane Cilento
— Kate Sinclair (archive footage)
Denholm Elliott
— Roland (archive footage)
William Rushton
— Lance (archive footage)
Roland Culver
— Duke of Caith (archive footage)
Moultrie Kelsall
— Sir Angus (archive footage)
Christopher Sandford
— Onslow (archive footage)
Ivor Dean
— Mr Beebe (archive footage)