Helena Coppejans is a Belgian actress born in Brussels on April 25, 1986, who is primarily known for her work in voice dubbing. She is a graduate of the Institut National Supérieur des Arts du Spectacle et des Techniques de Diffusion, having completed her studies there in 2008. Her professional activity is based between Brussels and Paris, and she is active in dubbing for both animation and live-action productions in Belgian studios, occasionally working on French dubs as well.

Coppejans has built an extensive portfolio of voice work in anime, providing the French-language voices for a wide range of characters. One of her most recognized roles is the title character in the anime Violet Evergarden, a performance that also extended to the franchise's film adaptations. In the series The Rising of The Shield Hero, she voices the role of the young princess Melty Q. Melromarc. She has also taken on multiple roles within a single series, such as in The Case Study of Vanitas, where she voices both Astolphe Granatum and Chloé D'Apcher, and in Seirei Gensouki - Spirit Chronicles, where she voices both Aishia and Alma. Her other notable anime credits include Rim in The Dungeon of Black Company, Sui and Sota in Darwin's Game, and Maria Fianna Albert in The Hidden Dungeon Only I Can Enter. She also contributed a voice role to the film Pokémon the Movie: Secrets of the Jungle.

Her work demonstrates recurring collaborations with Belgian dubbing studios such as Hiventy and a consistent presence in the industry's voice acting community, often appearing alongside other regular Belgian voice actors in anime productions. Beyond anime, Coppejans' dubbing career is notably extensive, encompassing a wide variety of live-action series and films. A prominent example is her long-standing role as the voice of Barbie in a series of animated films starting in 2016. She also provides the French voice for Lainey Lewis in the series The Goldbergs and Alison "Tosh" MacIntosh in Shetland, among many other credits in television and film.