Born in Paris, Guillaume studies filmmaking at the Ecole Supérieure de Réalisation Audiovisuelle, where he directs his first short Correction starring the late famous French actor Bernard-Pierre Donnadieu.

After graduating, he spends the next 10 years working as editor and sound editor on several TV series and feature films such as L’Affaire Dreyfus, Jean Moulin, Dieu Que les Femmes Sont Amoureuses or Una Pura Formalita, collaborating with such famous French directors as Yves Boisset, Magali Clement or Guiseppe Tornatore.

In 2004, Guillaume becomes a full time script writer. He writes, adapts for the screen and supervises the writing of many TV properties such as Marvel’s Iron Man, Casper, Spirou et Fantasio, Invisible Man, Le Marsupilami, Baskup Tony Parker, Trolls of Troy, Plankton Invasion, Mini Ninjas, My Giant Friend, etc.

Meanwhile he directs Brumes, awarded at the L.A. Horror festival and the Ravenna Nightmare Film Festival, and broadcasted many times on Universal’s network 13ème Rue. Then, Guillaume writes several feature films such as the monster movie Unleashed and the animated feature Kitty. Then, Guillaume develops the dystopian TV Series Asile – Le Monde d’Après with Room 237, the supernatural adventure drama Desolacion with producer Michel Ruben and director Gonzalo Lopez-Gallego. Following that, Guillaume also adapts as a TV Series the English thriller best-seller Until You’re Mine for the production company Banijay.

Presently, Guillaume is finishing writing the comedy En Vert et Contre Tous for Tigerfish production company. Now that his new short Par le Sang is completed, he’s beginning to develop his feature film projects with his co-director Jonathan Delerue.