Lexi Fontaine is an American voice actress known for her work in anime and video game dubbing. She was born in Santa Monica, California. Fontaine provided the voice for Hyakume, a demon character, in the 2023 Netflix anime series Akuma-kun, appearing in all twelve episodes of the first season. She also voices the character Kaya-Chan in the anime series Kaya-chan Isn't Scary. Beyond these anime roles, her voice acting credits include the video game Harry Potter: Magic Awakened, the animated series Pinkfong Wonderstar, and the film Pinkfong Sing-Along Movie 2: Wonderstar Concert. Fontaine has also contributed her voice to the Japanese mobile game Arknights. She is known for having a unique young vocal quality, and her personal interests include baking, playing the piano, and animation.