20th Anniversary Sgt. Frog Film Reveals More Guest Cast Posted on May 26, 2026 By admin No Comments on 20th Anniversary Sgt. Frog Film Reveals More Guest Cast Tomokazu Seki, Natsuki Hanae, Kōichi Yamadera, Keigo Satō, Yūsei Yagi, Suzanne, Rina Watanabe join cast Source: https://www.animenewsnetwork.com/news/2026-05-25/20th-anniversary-sgt-frog-film-reveals-more-guest-cast/.237810 Anime