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

Browning Mummery

Solo Tenor / Alfredo the Gondolier

Frederick Leister

Emperor FranzJosef

Alec Guinness

W.W.I. soldier in concert audience (uncredited)

George Treger

Solo gypsy violinist

Neville Brook

Minor Role

Victor Saville