Leonardo DiCaprio as Arthur Rimbaud

David Thewlis as Paul Verlaine

Romane Bohringer as Mathilde Maute

Dominique Blanc as Isabelle Rimbaud

Nita Klein as Rimbaud's Mother

Félicie Pasotti as Isabelle, as a child

James Thierrée as Frederic

Emmanuelle Oppo as Vitalie

Christopher Hampton as The Judge

Denise Chalem as Mrs. Maute De Fleurville

Andrzej Seweryn as Mr. Maute De Fleurville

Christopher Thompson as Carjat

Bruce Van Barthold as Aicard

Christopher Chaplin as Charles Cros

Mathias Jung as André

Kettly Noël as Somalian Woman

Cheb Han as Djami