- Rina Ikoma (Kamen Rider Reiwa The First Generation) as Akiko Narumi
- Gai Ueno as Ryu Terui
- Ami Noujo (Bad Boys J) as Tokime
- Rita Aizawa (Tokyo Revengers stage play) as Shun Makura
- Hiroya Matsumoto (Mahou Sentai Magiranger) as Renji Tachikawa
- Yusuke Umezawa (Engeki xxxHOLiC) as Sabu
- Kotaro Ito (Gurren Lagann stage play) as Chuuta Tsubosaki
- Yuki Kamisawa (Kamen Rider W) as Yukiji Bando
- Takeshi Nadagi (Kamen Rider W) as Mikio Jinno
Of the announced cast members, only Kamisawa and Nadagi appeared in the original Kamen Rider W series. Kamisawa previously played Kirihiko Sonozaki/Nasca Dopant, while Nadagi played Mikio Jinno, making this an instance that he reprised said role.
Staff from the Kamen Rider W series will return for the upcoming stage play, most notably Kamen Rider W series head writer Riku Sanjo serving as script supervisor, and Kotaro Nakagawa & Shuhei Naruse working on the stage play's music. Lastly, veteran Kamen Rider writer Nobuhiro Mouri will direct the stage play and co-write it with Shunto Nishi (Kamen Rider Revice: Birth of Chimera). Fuuto PI The STAGE will run from December 29, 2022 to January 15, 2023 at the Sunshine Theatre in Tokyo, and from January 19-25, 2023 at the Umeda Arts Theater Drama City in Osaka.