Wang Tingwen

as Shenxiu (voice)

Su Xin

as Nanhe / Xiao Chou (voice)

Kuixing Teng

as Chief Mate (Da Fu) / Father (voice)

Yang Ting

as Stepmom / Flower (voice)

Jing Ji

as Mother / Blue Carp (voice)

Guo Haoran

as Purple Carp (voice)

Tian Xiaopeng

as Clown Fish (voice)

Fang Taochen

as Sweet Bean (voice)

Dong Yi

as Younger Brother (voice)

Zhou Juan

as Little Carp (voice)