Trivia

Son of Gérard Depardieu and Elisabeth Depardieu.

Contracted an infection while being treated in an hospital for a leg-wound following a motorbike accident. The infection proved to be extremely resistant to antibiotics and, after almost 2 years in and out of treatment and a great deal of pain with no end in sight, he decided to have his leg amputated.

He died at the Raymond-Poincaré Hospital in Garches, west of Paris, on October 13 2008 (aged 37), after contracting severe pneumonia whilst filming The Childhood of Icarus (2009) on location in Romania. His funeral was held in Notre Dame Church in Bougival, near to his home in Paris. He is buried in Bougival Cemetery.

Was a composer as well as excellent piano player.

Father with his wife, actress Elise, of a daughter: Louise Depardieu (b. January 2001).

Good friend of Vincent Perez.

Played the younger version of one of his father's characters several times: Marin Marais in Tous les matins du monde (1991), Edmond Dantes in The Count of Monte Cristo (1998), and Jean Valjean in Les misérables (2000). They played father and son in The Wonderful Crook (1975) and A Loving Father (2002).

Older brother of Julie Depardieu. Half-brother of Jean and Roxane Depardieu. Uncle of Billy and Alfred (Julie's sons).

He had a "Petit Prince" tattoo around his navel. It showed the Little Prince, as originally drawn by Antoine de Saint-Exupéry, standing on his home planet.

16 September 2003 - Received a suspended 9-month prison sentence and a $9000 fine for threatening a man with a gun in Trouville, France.

Separated from his wife Elise in 2001.

He and his father Gérard Depardieu have both shared a role with José Ferrer. His father shared Ferrer's Oscar-winning role of Cyrano de Bergerac (1990), earning himself his own Oscar nomination in the process. Guillaume appeared in Milady and the Three Musketeers (2004) as the Musketeer Athos, a part played by Ferrer in The Fifth Musketeer (1979). Gerard played a different Musketeer, Porthos, in The Man in the Iron Mask (1998) which, like The Fifth Musketeer, was based on The Viscount of Bragelonne.

His ex wife Elise Depardieu died 6 October 2020 in France.

Like Miguel Ferrer, he is the son of an actor (José Ferrer, Gérard Depardieu) who has played Cyrano de Bergerac; he has played a younger version of one of his father's characters (Robert Wickes/Robert Caine from 'Magnum: P.I. (1980)(TV)', Jean Valjean/Edmond Dantes), and one of his closest friends (Brandon Lee, Vincent Perez) has played The Crow.