Seishirou Katou is a Japanese child actor. He debuted when he was 13 months old.
as Baby Mumble (voice)
as Shin Takeda
as Itona
as Umasou (voice)
as Yuusuke Kijinami (voice)
as Rantaro
as Itona Horibe
as Yuji Yanagi
as Young Naki (voice)
as Masao Kiyota
as Takao Ogawa
as (segment "Umi no hoshi")
as Goro
as Nintaro
as Makoto Taiga
as コナン
as Kouichirou Amano
as Toya
as Sagara Rui
as Kosuke Rokkaku
as Kai Yakumo
as Minoru Yame
as Nakahara Takeru
as Saigo Sanada
as Sosuke Nakano
as Kenta Kawakami
