William Roper (the Younger)
Admiral Trowbridge
Bertie Smith
Cornwall
Prime Minister
Oliver Page
David
Professor
Hunslett
Richard
Glyn Hughes
Major Lanoe Hawker VC
Jonathan Harker
Frank Hogan
Devine
Eric Sange
Brother Lucius
Gigi
Judge
Angelo
Worsley
Octavius
Earl of Worcester
Chief Inspector Clements
Dr. Edward Trenbow
James Steerforth
Self
Robert Dixon
Cecil Williams - One Man Show sequence
Perkin Warbeck
Spectator at Sports Day (uncredited)
Sir Thomas Neathouse
General Montgomery
Hamish
William of Orange
Edward Heath
Duggie Ord
Capt. Featherstonhaugh
The Bishop
Lord de Vere
Sir Walter Eliot
Dr. Kidson
Walter Davison
(voice)
Captain Wimmel
David Swift
Sir James Beatty
Old Jolyon Forsyte
Gabe
Sir George Gray
Lord Curzon
D.C.I. George Walsh
Dr. Paul Hoyle