The Cesar-winning actor was skiing in the Savoie region when he collided with another skier at an intersection between two slopes. He suffered a serious brain trauma on Tuesday.
The star of A Very Long Engagement and Hannibal Rising was hospitalised after the accident in the Alps.
He was later transported via helicopter to Grenoble where he died of his injuries.
Ulliel was one of France’s best known actors and worked with critically acclaimed filmmakers in France and abroad.
He delivered a powerful performance as the famous French fashion designer Yves Saint Laurent in Bertrand Bonello’s “Saint Laurent” which competed at Cannes.
Ulliel, who was highly selective about the roles he chose, also starred in Xavier Dolan’s “It’s Only the End of The World,” Jean-Pierre Jeunet’s “A Very Long Engagement,” as well as Bertrand Tavernier’s “La Princesse de Montpensier” which allowed him to break through beyond France’s borders.
Underscoring his international profile, Ulliel was cast as Midnight Man in Marvel’s highly anticipated “Moon Knight.”
The young actor, who was known to be elegant and discreet yet friendly, won a flurry of laurels through his career, including two Cesar awards, in 2005 with ” A Very Long Engagement” and in 2017 with “It’s Only The End of The World.” Ulliel was also a sought-after model.
He was the face of the Chanel fragrance Bleu de Chanel and starred in commercial directed by Martin Scorsese for the brand.