Yuji Ueda
Keitaro Urashima (voice) (27 eps)
Yui Horie
Naru Narusegawa (voice) (27 eps)
Yuu Asakawa
Motoko Aoyama (voice) (27 eps)
Reiko Takagi
Kaolla Suu (voice) (27 eps)
Junko Noda
Mitsune Konno (voice) (27 eps)
Megumi Hayashibara
Haruka Urashima (voice) (27 eps)
Michio Miyashita
Kimiaki Shirai (voice) (19 eps)
Hiroyuki Yoshino
Masayuki Haitani (voice) (18 eps)
Satsuki Yukino
Mutsumi Otohime (voice) (12 eps)
Yumiko Kobayashi
Sarah McDougal (voice) (11 eps)
Yuki Hokimoto
Emi Ichikawa (voice) (10 eps)
Madoka Akita
Kikuko Onoue (voice) (10 eps)
Ryotaro Okiayu
Kentaro Sakata (voice) (10 eps)
Yasunori Matsumoto
Noriyasu Seta (voice) (8 eps)
Takuma Suzuki
Old man (voice) (7 eps)
Yuri Shiratori
Mei Narusegawa (voice) (4 eps)
Hiromi Tsuru
Shinobu's mother (voice) (2 eps)
Aya Hisakawa
Amalla Suu (voice) (2 eps)
Masako Nozawa
Hina Urashima (voice) (2 eps)
Kei Hayami
Keitaro's mother (voice) (1 eps)
Masashi Ebara
Shinobu's father (voice) (1 eps)
Shozo Iizuka
Demon King (voice) (1 eps)
Ken Akamatsu
Akamatsu-sensei (voice) (1 eps)
Satomi Korogi
Moe (voice) (1 eps)
Kenichi Ono
Naru's stepfather (voice) (1 eps)