Alessio Celsa is an Italian voice actor known for his work in dubbing anime and other animated productions for the Italian market. He is not a Japanese voice actor (seiyuu) but rather provides the Italian-language voice for characters in localized versions of anime series.

His profile in the dubbing industry is documented through credits in several anime series. Celsa is recognized for voicing the character Aoi Mibuomi in the Italian-language dub of the 2022 original net animation series Kakegurui Twin. In this series, a prequel to the Kakegurui franchise, he lends his voice to the role of the Student Council Treasurer who takes an interest in the protagonist, Mary Saotome. His involvement in the project is part of the Italian dubbing produced by CDC Sefit Group in Rome, with dialogues edited by Mattia Billi and directed by Gianluca Crisafi.

Beyond this prominent role, Celsa's credits include other anime titles. He has voiced characters in the Italian versions of other series. These include the role of Rod Bauer in the television anime I'm in Love with the Villainess and a character named Nojima in Mix: Meisei Story. These credits confirm his continued activity within the Italian anime dubbing sector.