Red River Anime Reveals New Cast Member, Theme Song Artists Posted on September 1, 2026 By admin No Comments on Red River Anime Reveals New Cast Member, Theme Song Artists Nana Mizuki voices Ursula, performs new opening song; Ryu Matsuyama performs new ending Source: https://www.animenewsnetwork.com/news/2026-09-01/red-river-anime-reveals-new-cast-member-theme-song-artists/.241190 Anime