Riho Sugiyama has two announced anime roles in 2026: Jishuka in the Overgeared television anime and Takiko Mizuse in My Stepmother and Stepsisters Aren't Wicked. Both roles were announced in August and September 2026, respectively.
Riho Sugiyama picked up two anime roles in 2026, both announced within weeks of each other. In August, the Overgeared anime confirmed she voices Jishuka, a supporting role in the series set to premiere October 2 on Tokyo MX and BS11. The announcement came alongside the full broadcast date and theme song details, with the second promotional video previewing the opening and ending songs.
A month later, in September, the My Stepmother and Stepsisters Aren't Wicked television anime added her as Takiko Mizuse. That series had debuted July 8 on TV Kanagawa, TV Saitama, and Chiba TV, and the character appears in the ninth episode. Sugiyama was one of three new cast members announced for that episode, alongside Ai Kakuma and Minami Tsuda.
The two roles show Sugiyama active in television anime across different seasons in 2026, one in a fall premiere and one in a series already airing. No further details about her involvement in either project have been reported.
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The television anime of Otsuji's My Stepmother and Stepsisters Aren't Wicked manga has added three cast members. Riho Sugiyama plays Takiko Mizuse, Ai Kakuma plays Homare Takanashi, and Minami Tsuda plays Chiyo Mitsunaka. The characters appear in the anime's ninth episode on Wednesday. The series debuted July 8 on TV Kanagawa, TV Saitama, and Chiba TV.
The Overgeared anime will premiere on Tokyo MX and BS11 on October 2 at 11:30 p.m. JST. The second promotional video previews the opening theme "SATISFY" by Re:name and the ending theme "Ray of Emotion" by virtual singer TAO. New cast members include Riho Sugiyama as Jishuka, Masaaki Mizunaka as Toban, Kō Bonkobara as Regas, Masaya Fukunishi as Vantner, Kōhei Amasaki as Pon, and Shunichi Toki as Faker.