Laurent Morteau is a French actor, primarily known for his extensive work in dubbing for film and television, including providing the French voices for numerous anime and animated series. He was born in Dijon, France. Morteau trained at the École du Passage under Niels Arestrup before beginning his career in theatre. He took a hiatus from acting in the 1990s to work as a photographer on fashion shoots and film sets before returning to the profession through dubbing.

Morteau has a significant body of work in animation, lending his voice to a wide array of characters. In anime and animated series, he is widely recognized as the regular French voice for several iconic characters. He voices the title character in Johnny Bravo, the father in Dexter's Laboratory, and Gilbert the Tarsier in The Jungle Bunch (Les As de la jungle) franchise, including films and series. He also voiced the character Lui in The Powerpuff Girls. In a notable example of anime dubbing, he is the voice of Kuniharu Saiki, the father of the protagonist, in the French version of The Disastrous Life of Saiki K.: Reawakened. His other animation voice work includes roles in films such as Sirocco and the Kingdom of the Winds, Asterix: The Mansions of the Gods, and The Secret Life of Pets.

Beyond animation, Morteau is a prominent figure in the dubbing of live-action film and television. He is one of the regular French voices for numerous American actors, creating recurring collaborations that define his career. These actors include Amaury Nolasco, Ken Leung, Alan Ruck, P. J. Byrne, Jason Mantzoukas, Will Forte, and Thomas Lennon. Through these regular associations, he has provided the French voice for characters in major series such as Prison Break (as Fernando Sucre), Lost (as Miles Straume), Spin City (as Stuart Bondek), and The Suite Life of Zack & Cody (as Mr. Moseby). His film dubbing credits are equally extensive, including voices for characters in blockbusters like the Star Wars franchise and the works of directors such as Robert Altman. His contributions to dubbing extend to video games as well, with voice roles in titles such as Mass Effect, Dragon Age: Origins, and Heavy Rain.

A notable achievement in his career is his extensive and consistent work as a voice actor, having become the designated French voice for many well-known actors and characters over several decades. This has made him a familiar and respected presence in the French dubbing industry. His work spans from cult animated series to major Hollywood productions and video games, demonstrating his versatility as a performer.