Kelvine Dumour is a French voice actress known for her extensive work in the dubbing of American animated series and films. Her career in voice acting began by the late 1980s, with one of her earliest known credits being a voice role in the 1987 television series Lady Lovelylocks and the Pixietails. In the early 1990s, she contributed to the French dub of the 1971 animated feature Animal Treasure Island, where she provided the voices for both Glan the mouse and the character Bob. Her work also includes the 1992 French animated television series The Bear's Island, which was notable for its early use of computer animation.

Dumour is most widely recognized as the definitive French voice of the DC Comics character Harley Quinn. She began voicing the character in the 1990s animated series Batman, a role she has reprised extensively across numerous projects over two decades. Her portrayal of Harley Quinn can be heard in films such as Batman Beyond: Return of the Joker, Batman: Assault on Arkham, Batman and Harley Quinn, Batman Ninja, and the video game Injustice. Beyond Harley Quinn, she has voiced other characters in the DC animated universe, including Selina Kyle and Catwoman in films like Batman: Year One and Batman: The Dark Knight Returns, as well as Vixen, Katana, and Cheshire in various series. Her other notable roles include Lydia in the French dub of Beetlejuice and Vipère in Jackie Chan.