- Unknown:
- Noel Langley
- Adapted By:
- Raymond Raikes
- Music By:
- Antony Hopkins
- Unknown:
- Denis Quilley
- Unknown:
- Carleton Hobbs
- Unknown:
- Elizabeth Morgan
- Unknown:
- Carleton Hobbs
- Conducted By:
- Antonius Primus Hopkins
- Produced By:
- Raymond Raikes
- Dionysus, a sculptor:
- Norman Shelley
- Igo, his retainer:
- Timothy Harley
- Casso, a sheep-clipper:
- Fraser Kerr
- Althea:
- Elizabeth Morgan
- Lucius Cullus, in command of a Legion:
- Hamlyn Benson
- SextusTarquinius:
- Denis Quilley
- Essa, wife of Igo:
- Petronella Barker
- An Ancient:
- Michael Goldie
- Hector, a Greek poet:
- Gabriel Woolf
- Collatinus in command of the First Legion:
- Francis de Wolff
- A young captain:
- Glyn Dearman
- A lictor:
- Gordon Faith
- A tribune:
- Alan Haines
- Volumnia, Althea's matronly maid:
- Molly Rankin
- Brutus Secundus, a tall hectic young man.:
- Stephen Thorne
- Brutus Primus, his father a senator:
- , Austin Trevor
- Tullius the Aged:
- John Boxer
- Caius Sempronius Gracchus a gouty senator:
- John Ruddock
