The rainbow fish, an outsider obsessed with his glittering scales, learns the power of friendship on an adventurous sea voyage with the little blue fish. He finds his place in a colorful fish community—and realizes that sharing brings people together.
| Actor | Role |
|---|---|
 Jannik SchümannRainbow Fish (voice) | Rainbow Fish (voice) |
 Luna WedlerLittle Blue Fish (voice) | Little Blue Fish (voice) |
 Bettina StuckyOctopus (voice) | Octopus (voice) |
 Urs BosshardtGrummel Grusel (voice) | Grummel Grusel (voice) |
 Andrea Sawatzki(voice) | (voice) |
 Bjarne Mädel(voice) | (voice) |
 Tom Böttcher(voice) | (voice) |
 Tobi Krell(voice) | (voice) |