Alfred Boulard, a good-natured electrician, gives his blood to save Mona Thalia, a great theater actress. Mona Thalia survives and Boulard becomes the man of the hour. Grateful to him, Mona helps Alfred to become a singing star. But his fame will be short-lived.
| Actor | Role |
|---|---|
 Maurice ChevalierAlfred Boulard | Alfred Boulard |
 Elvira PopescuMona Thalia | Mona Thalia |
 Josette DaySuzanne Petit | Suzanne Petit |
 André AlermeFrançois-Théophile Cormier de la Creuse | François-Théophile Cormier de la Creuse |
| MMarcel ValléeVergoulet | Vergoulet |
| MMarguerite DevalMme Christoforo | Mme Christoforo |
| RRenée DevillersFanny Couvrain - la fille aux fleurs | Fanny Couvrain - la fille aux fleurs |
 Marcelle GéniatAlphonsine Boulard - la mère d'Alfred | Alphonsine Boulard - la mère d'Alfred |
 Charles GranvalLe colonial | Le colonial |