Yannick Lassere is a French actor who specializes in dubbing for French-language audiences. His career in voice-over began after he took theater classes under Frédéric Souterelle for three years starting in 2017, which led to introductions to voice directors and subsequent dubbing work.

While Lassere has a broad portfolio that includes dubbing live-action roles in series such as Wednesday and films such as King Richard, he is also known for his work in animation and anime. One of his notable roles in anime is providing the French voice for Thorfinn in the series Vinland Saga. He is also part of the French cast for the original anime series Suicide Squad ISEKAI, where he voices the character King Shark. Additional animation work includes voicing Lieutenant Kayshon in Star Trek: Lower Decks, Frantz in Captain Fall, and Emmett in Eva the Owlet.

Beyond television and film dubbing, his voice can be heard in several major video game localizations. He is the French voice for numerous cards in HearthStone and for Owen Lars in Lego Star Wars: The Skywalker Saga. He has also contributed additional voices for high-profile games such as Call of Duty: Modern Warfare 2, Final Fantasy VII Remake, Outriders, and Assassin's Creed Mirage.