- Author:
- T.L.W. Hubbard
- Adapted by:
- Basil Douglas
- Production:
- Martyn C. Webster
- Miss Payne, a receptionist:
- Sheila Manahan
- Bill Durrant-Atwill, a psychiatrist:
- Richard Hurndall
- Helen Conway:
- Isabel Dean
- George Conway, a civil servant:
- Denis Goacher
- David Collins, his nephew:
- David Spenser
- Miss Pettigrew, secretary to Sir Richard Parkington:
- Joan Matheson
- Pierre Lavise, a train steward:
- John Hollis
- Jean, another train steward:
- John Graham
- Dr. Simolisk, Director of the Rykau Festival:
- Jeffrey Segal
- Anna Klant:
- Beryl Calder
- Dr. Klant, organist of Rykau Cathedral:
- John Cazabon
- Sir Richard Parkington:
- Hugh Manning
- Laventnik, leader of the Rykau Orchestra:
- David March
- Mrs. Siebeline:
- June Tobin
- Polish frontier guard:
- John Bennett