Guillaume de Tonquedec
- Category : 1966-births
- Type : GP
- Profile : 5/1 - Heretical / Investigator
- Definition : Split - Large
- Incarnation Cross : LAX Limitation 2
French Breton stage and film actor, he began his career in "Three Colors Blue" (with Juliette Binoche). Since 2007, he has been starring in a successful French TV serie. In 2013, he won a Cesar for best supporting actor in "What's in the Name?".