On screen
Cast
67 credited performers
Frances Hyland
Calpurnia
Ivor Barry
Character not listed
Neil McCallum
Jerry
Tony Van Bridge
Character not listed
Leo Leyden
Character not listed
John Vernon
Character not listed
Eric House
The Rt. Hon. Sir Joseph Porter, KCB, First Lord of the Admiralty
Betty Leighton
Character not listed
Kate Reid
Portia
Timothy Findley
Edouard
Gillie Fenwick
Julius Caesar
Joseph Wiseman
Prisoner
Kathleen Widdoes
Character not listed
Fritz Weaver
Brutus
William Shatner
Mark Antony
Lawrence Dane
Character not listed
Toby Robins
Isabelle
Sharon Acker
Diana
James Doohan
T. J.
John Colicos
Lord Arthur Savile
Michael Learned
Irena
Peter Donat
Toozenbach
Stephen Ker Appleby
Character not listed
Anne Butler
Character not listed
Madeleine Christie
Mrs. Bramson
Roy Passano
Character not listed
Pat Malone
Character not listed
Jill Showell
Character not listed
Jeremy Wilkin
Andrey
Anne Collings
Natasha
Henry Comor
Chebutykin
Jonathan Erland
Lieutenant Glinkov
Jane Mallett
Anfisa
Peter Mannering
Koolyghin
Alex McKee
Ferapont
Jonathan White
Fedotik
Glenn Gould
Self
Leonard Rose
Self
Lister Sinclair
Self - Presenter
Virginia Copeland
Elektra
Ilona Kombrink
Chrysothemis
Richard Cassilly
Aegisthus
Mona Kelly
Clytemnestra's Confidante
Arlene Meadows
Overseer
Jan Rubeš
Guardian
Martha Henry
Lady Sybil Merton
Margaret Braidwood
Duchess of Paisley
William Glover
Robins
Dino Narizzano
Coney
Mavor Moore
Psychiatrist
Ted Follows
Major
George Sperdakos
Mingo
William Bell
Finch
Leo Ciceri
Hugo /Frederic
Elizabeth Cole
Capulat
Douglas Rain
Cassius
Bruno Gerussi
Casca
Hedley Mattingly
Character not listed
Martita Hunt
Agatha Payne
Rodney Archer
Character not listed
Larry Beattie
Character not listed
Marion Studholme
Josephine Corcoran, the Captain' daughter
Andrew Downie
Ralph Rackstraw, an able seaman
Irenee Byatt
Little Buttercup, a Portsmouth bumboat woman
Albert Dekker
King Henry VIII
Luther Adler
Rabbi Azrael
Barbara Shelley
Ruth