- Author/Adapter:
- Dulcie Gray
- Producer:
- Audrey Cameron
- June Allen, leading lady:
- Jane Wenham
- Minnie Adam, her dresser:
- Olga Lindo
- Harry Rawlings, the leading man:
- Gabriel Woolf
- Brian Philips, assistant stage manager:
- David Spenser
- Detective-Sergeant Shaw:
- Hector Ross
- Detective-Inspector Parker:
- Frank Duncan
- Constable Smart:
- Basil Jones
- Pat O'Hara, stage-door keeper:
- Timothy Harley
- Mr Bernholt, theatre manager:
- Edward Chapman
- Sergeant Mason:
- Michael Spice
- Penelope Jones, stage manager:
- Sheila Grant
- Hewitt Manners, an actor:
- Eric Anderson
- Joyce Gibson, an actress:
- Molly Rankin
- Connie Chance, wardrobe mistress:
- Vera Lennox
- Mary Jennings, an actress:
- Rosalind Shanks
- Nancy Barnes, an actress:
- Vera Lennox
- Peter Moore, an actor:
- David Spenser
- Detective Chief Superintendent Ross:
- Noel Howlett
- Tom Layton, a film star:
- Bruce Beeby
- Kathleen, a shop assistant:
- Jane Wenham
- Kenneth West:
- Basil Jones
- Police switchboard operator:
- Timothy Harley