Christina Costello is an American voice actor known for her work in English dubs of anime series and video games. Born on August 30, 1993, in Massachusetts, she is of mixed Middle Eastern heritage. Her voice is often cast for child to young adult characters in the medium to high-pitched vocal register. Beyond voice acting, her interests include drawing, reading, playing video games, watching anime, writing, and practicing yoga, and she possesses skills in playing the piano and singing.

Costello's career encompasses a variety of roles in both anime and gaming. In anime, she voices the character Alma in the series Seirei Gensouki - Spirit Chronicles. She is also the voice of Arisa in the English dub of the gag comedy short series Henkei Shoujo. Her other anime voice roles include WA2000 in Girls' Frontline, Ali in Pluto, Flamme in Synduality Noir, Alvitr in Record of Ragnarok, Teruko in Taisho Otome Fairy Tale, Rio Teruya in PuraOre! Pride of Orange, and Ai Mashiro in Don't Toy with Me, Miss Nagatoro 2nd Attack.

A significant portion of Costello's work is in video games, where she has voiced prominent characters. She is the English voice of Collei in the popular game Genshin Impact. Her other game credits include the role of Mozzarella Cookie in Cookie Run: Kingdom, Acai in Arknights, and WA2000 in the mobile game Girls' Frontline, the source material for the anime of the same name. Her filmography also includes roles in games like Dark Deity 2 and Path to Nowhere.