- Unknown:
- Ingmar Bergman
- Translated By:
- Michael Meyer
- Music By:
- Ilona Sekacz
- Directed By:
- Martin Jenkins
- Agnes:
- Lynsey Baxter
- the Officer:
- Denis Quilley
- as the Advocate:
- Frank Finlay
- as the Schoolmaster:
- Clifford Rose
- and as Strindberg, the Poet:
- Ian Richardson
- Glazier:
- Alan Dudley
- Father/He:
- David McAlister
- Mother/Wife:
- Frances Jeater
- Lina/Edith:
- Jill Lidstone
- Stage-door keeper:
- Katherine Parr
- Bill poster:
- Ronald Herdman
- She:
- Miranda Forbes
- Coal carrier:
- Brian Coburn
- Dean of Law/Coal carrier:
- Michael Tudor Barnes
- Prompter/Dean of Philosophy:
- Nicholas Courtney
- Blind man...:
- Hugh Dickson
- Quarantine master:
- John Hollis
- Naval officer/Nils:
- Spencer Banks
- Kristin:
- Theresa Streatfeild
