They[a] are best known as the voice of video game characters such as Valkyrie in Apex Legends,[2] and for their appearances in actual play web series including L.A. by Night and Dimension 20.

"[3] Ishii spoke positively about their role as the mixed-Japanese lesbian Valkyrie in Apex Legends, stating that "None of it was tokenism... She's one of the most real characters I've ever had the honour of portraying.

"[6][7] Ishii was a narrator for the audiobook Walk Among Us (2020),[8][9] "an audio-first trio of horror novellas set in Vampire: The Masquerade's World of Darkness".

[10] In September 2021, Ishii was a featured artist on the acoustic version of the song "Can You Feel My Love" by the music group Juniper Vale.

[17][18] In January 2023, it was announced that Ishii, with Brennan Lee Mulligan, Aabria Iyengar, and Lou Wilson, would star in the creator-owned actual play podcast Worlds Beyond Number; the show premiered in March 2023.