By the Grace of God

Melvil Poupaud

Alexandre Guérin

Denis Ménochet

François Debord

Swann Arlaud

Emmanuel Thomassin

Éric Caravaca

Gilles Perret

François Marthouret

Cardinal Philippe Barbarin

Bernard Verley

Father Bernard Preynat

Martine Erhel

Régine Maire

Josiane Balasko

Irène, Emmanuel's Mother

Hélène Vincent

Odile Debord, François' Mother

François Chattot

Pierre Debord, François' Father

Frédéric Pierrot

Captain Courteau

Aurélia Petit

Marie Guérin, Alexandre's Wife

Julie Duclos

Aline Debord, François' Wife

Jeanne Rosa

Dominique Perret, Gilles' Wife

Amélie Daure

Jennifer