- Evelyn Laye
- Madame Irela (Maggie O'Neil)
- Fritz Kortner
- Arthur Kober
- Emlyn Williams
- George Leary
- Carl Esmond
- Count Ehrenburg / Archduke Theodore
- Alice Delysia
- Madame Valmond
- Conchita Supervia
- Baba L'Etoile
- Muriel Aked
- Tremlowe
- Dennis Val Norton
- Sovino
- Arthur Sinclair
- Pa O'Neil
- Patrick O'Moore
- Bob O'Neil
- Browning Mummery
- Solo Tenor / Alfredo the Gondolier
- Frederick Leister
- Emperor FranzJosef
- George Treger
- Solo gypsy violinist
- Neville Brook
- Minor Role
- Alec Guinness
- Soldier in Concert Audience (Extra)
- Cyril Smith
- Stage Doorkeeper
