- Unknown:
- Alec Clones
- Unknown:
- Robert Eddison
- Unknown:
- Maxine Audley
- Unknown:
- Ernest Milton
- Unknown:
- William Shakespeare
- Unknown:
- Raymond Raikes
- Composed By:
- Thomas Eastwood
- Conducted By:
- Lionel Salter
- Producer:
- Raymond Raikes
- King John:
- Robert Eddison
- Pembroke:
- Walter Fitzgerald
- Salisbury:
- James Dale
- Chatillion:
- Allan McClelland
- Queen Elinor, mother to King John:
- Olga Lindo
- The Bastard, son of Faulcon bridge:
- Alec Clunes
- Robert Faulconbridge, his half-brother:
- Nigel Graham
- Philip King of France:
- John Justin
- Lymoges, Duke of Austria:
- Michael Kilgarriff
- Arthur, Duke of Brittany, John's nephew:
- Daniel Rose
- Constance, mother to Arthur:
- Maxine Audley
- Hubert de Burgh:
- Trevor Martin
- Lewis, the Dolphin:
- John Westbrook
- Blanch of Castile, John's niece:
- Denise Bryer
- Cardinal Pandulph:
- Ernest Milton
- An executioner:
- Ronald Herdman
- Peter of Pomfret:
- Ronald Herdman
- A French lord:
- Noel Howlett
- Prince Henry:
- Anthony Hall
