Breaker the Dolphin was a character dropped from Disney's The Little Mermaid. He was to be Ariel's companion and friend, but was apparently replaced by Flounder.
In the Role
But during Sebastian's rendition of "Under the Sea", the dolphin swimming around while Sebastian sang, 'as off through the waves we roll, yeah', was supposedly a cameo appearance of Breaker.
Breaker's supposed cameo.