Audio recordings:

The Merchant of Venice, 1957
Role: Bassanio

Marigold, 1959
Role: Archie Forsyth

King Richard II, 1960
Role: Thomas Mowbray, Duke of Norfolk

King Richard III, 1960
Role: Earl of Clarence

Johnny the Priest, 1960
Role: The Rev. Richard Highfield

Troilus and Cressida, 1961
Role: Troilus

Saint Joan, 1963
Dunois

The Infernal Machine, 1967
Role: Oedipus

The Duchess of Malfi, 1968
Role: Antonio

The Merry Widow, 1968
Role: Count Danilo

Puss in Boots, 1972
Role: Storyteller

Sophocles' Antigone, 1973
Role: Haimon

Classics of English Poetry 
for the Elementary Curriculum
Year unknown

Scenes of Shakespeare
Released 1996, HarperCollins Publishing

Be Thou Now Persuaded: 
Living in a Shakespearean World
Released 1999, Rhino Publishing
Includes parts of Troilus and Cressida, King Richard II and The Merchant of Venice

Radio:

The Barretts of Wimpole Street
BBC Radio 4, 1972
Role: Robert Browning

Mendelssohn and Elyjah
BBC Radio 4, 1973

Man of Action
BBC Radio 3, 1976
Himself

BBC Interview, 1991
Interviewed by Gloria Hunniford?

NPR Interview, 1991

Desert Island Discs
USA, 1991
Interview - Listen

This Week's Good Cause
Appeal for the Manic Depression Fellowship
BBC Radio 4, Sept. 3, 1995