Serge Thiriet is a Belgian-born French actor, voice artist, and director, widely recognized for his extensive contributions to French dubbing, particularly in animation and video games. He was born on September 3, 1965, in Liège, Belgium. Beyond his voice work, Thiriet has also worked as a director and entrepreneur, notably creating a website dedicated to cataloging voice-over actors. He also wrote and directed the acclaimed short film Robert, ce héros in 1998, which gained significant attention for being screened in theaters nationwide.

In the realm of anime, Serge Thiriet has lent his distinctive calm and measured voice to several notable series. He is the French voice of the Observer, also known as le Créateur, in the anime To Your Eternity, a role he performed from 2021 to 2023. His other significant anime roles include Alex Row in Last Exile, various Autoreivs in Ergo Proxy, and providing voices for the Ghost in the Shell franchise, including Stand Alone Complex and SAC 2045. He also had a recurring role in the French animated series Famille Pirate, voicing characters such as La Sardine and Von Knoodle.

Thiriet's career is exceptionally prolific in the field of video games, where his voice is familiar to players of many major international franchises. He is known for a wide array of characters, including the Prince in several installments of the Prince of Persia series, Thane Krios in Mass Effect 2 and 3, the Spy in Team Fortress 2, and multiple characters in the Call of Duty franchise, such as Captain Foley and the zombie mode character Nikolaï. His work also extends to Star Wars games, where he has voiced characters like Kyle Katarn and Luke Skywalker. In addition to these, he has played Victor Zsasz in the Batman: Arkham series, Kaim Argonar in Lost Odyssey, and provided voices for numerous characters in games like The Elder Scrolls V: Skyrim, including the dragon Paarthurnax. His casting continues in upcoming titles, such as the role of Marok in the French version of Doom: The Dark Ages.

Beyond performing, Serge Thiriet has a significant behind-the-scenes role as a voice director, having directed the French adaptations of many major video game titles. His directing credits include the first Call of Duty, Assassin's Creed, and the massively multiplayer online game Star Wars: The Old Republic. He was also involved in directing voice recording for the highly anticipated game Clair Obscur: Expedition 33. This dual expertise as both a director and actor makes him a prominent and versatile figure in the French voice-over industry.