Risa Imayanagi, also known by the romanization Imayanagi Risa, is a Japanese voice actress born on February 9 in Saitama Prefecture, Japan. She is affiliated with the talent agency Yu-Rin Pro. Her career in the voice acting industry began in the 2010s.

Imayanagi is best known for her role as Diana Blackbell in the anime television series The Tale of Outcasts, which aired in 2023. Diana is a character in this dark fantasy story set in the 19th-century British Empire, which follows an orphan girl named Wisteria and an immortal being named Marbus. Imayanagi was part of a larger cast announcement for the series that included well-known voice actors such as Ayana Taketatsu and Katsuyuki Konishi.

In addition to this primary role, Imayanagi has performed in other anime productions. She had a minor role as a Teammate in the series Bottom-Tier Character Tomozaki, which was released in 2021. Her other credits include a supporting role in The Tale of Outcasts and a minor role in Yu-Gi-Oh SEVENS.

Information regarding recurring collaborations with specific directors, writers, or production studios, as well as notable achievements such as awards or nominations, is not available in public records.