Peter Ustinov

Socrates

Geraldine Page

Xantippe

Anthony Quayle

King Pausanias of Sparta

Christopher Walken

Lamprocles

Lloyd Bochner

Critias

Salome Jens

Theodote

Shepperd Strudwick

Lycon

Richard Ward

Satyros

Eric Berry

Meletos

John Heffernan

Anytas

Allen Nourse

Phaedo

David Haviland

Crassos

House Jameson

The Magistrate

Lee Vines

Announcer

Nat Horne

Satyros' Guard

George Schaefer