Marion Cotillard

as Edith Piaf

Sylvie Testud

as Simone 'Mômone' Berteaut

Pascal Greggory

as Louis Barrier

Emmanuelle Seigner

as Titine

Jean-Paul Rouve

as Louis Gassion

Gérard Depardieu

as Louis Leplée

Clotilde Courau

as Annetta Gassion

Jean-Pierre Martins

as Marcel Cerdan