is a Japanese voice actress affiliated with Himawari Theatre Group. She joined the group at the age of three and did acting in various television dramas. She later became a voice actress and was cast in her first lead role as Aoi Aioi in Her Blue Sky. Some of her other major roles include Yume Minami in SSSS.Dynazenon, Cosette Schneider/Destiny in Takt Op. Destiny, Takina Inoue in Lycoris Recoil, Ai Mie in The Girl I Like Forgot Her Glasses, Ellen Joe in Zenless Zone Zero, in , Lemon Yakishio in Too Many Losing Heroines!, and Momo Ayase in Dandadan.
Wakayama was born in Chiba Prefecture on February 10, 1998. She joined Himawari Theatre Group at the age of three. In 2002, she was cast in her first role as Natsu in '. Being a fan of video games, Wakayama wanted to pursue a career in voice acting. In 2019, she was cast in her first major role in an anime with Aoi Aioi in Her Blue Sky.
In 2022, Wakayama was cast as Mai Kawai in Police in a Pod and Takina Inoue in Lycoris Recoil. In 2023, she was a recipient of the Best New Actor Award at the 17th Seiyu Awards. In 2024 she voiced Momo Ayase in Dandadan.
2025
2026