Guillaume Depardieu's role was previously played by Jose Ferrer in The Fifth Musketeer (1979). His father, Gérard Depardieu, appeared in Cyrano de Bergerac (1990), also in a role previously played by Ferrer.
Brother and sister Guillaume Depardieu and Julie Depardieu are the children of actor Gérard Depardieu, who also played a Musketeer in The Man in the Iron Mask (1998).