On screen
Cast
9 credited performers
Keiko Toda
Hakofugu (Black spotted boxfish)
Artwork unavailable
Amo Yuikawa
Himetatsu (Korean seahorse)
Hikari Ishida
Himetatsu'mother / Bluefin tuna / Japanese sardine
Masafumi Kobatake
Great barracuda /Moray eel / Japanese sardine
Yu Okano
Marbled rockfish / Japanese sardine
Artwork unavailable
Hajime Sugimoto
Himetatsu's father
Sakana-kun
Whale shark
Tomomitsu Yamaguchi
Asian sheepshead wrasse / Japanese sardine
Tsurube Shofukutei
Common octopus