| Description | Character Name |
| father of the lost fish | |
| the young, lost fish with 'lucky fin' | |
| killed in the beginning by barracuda | |
| has short term memory loss | |
| leader of the 'tank gang,' has a scar on fin | |
| says ''find a happy place'' when glass tank is getting tapped on | |
| has a french accent | |
| | Description | Character Name |
| vegetarian shark | |
| the fish in the dentist's offer feathered friend | |
| states that 'mr turtle is my father' | |
| puffer fish who knows a lot about dentistry | |
| uses the word 'dude' often | |
| teaches the student's about things in the sea | |
| the dentist's fish killing niece | |
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