Morph

Morph is a pink blob of space goo that has the ability to morph into anything he wants and is a supporting protagonist in ''Treasure Planet. At some point prior to the film,'' Silver found him and took him as a pet.

Design
Morph is the trusted side-kick and pet of John Silver. Morph is known for being quite mischievous and has caused trouble in the past. He displays a liking to Jim Hawkins, the main protagonist, and is able to assist him with his morphing powers.

Treasure Planet
In the movie he plays a trick on Jim by transforming into the Map and there by revealing that the real map was still on the ship, which the crew had stolen. When Silver talks with Jim, trying to bribe the map from him, he calls for Morph to come with him but Morph stays with Jim after seeing for the first time his master's other side, and hearing him say that he cared about only one thing. Flint's treasure. This most likely broke Morph's heart because up until that point he thought that he really mattered to Silver.

Trivia

 * Morph comes from the planet Proteus I. Proteus was a shapeshifter in Greek Mythology, so Morph's homeworld's name is a reference to his own shapeshifting powers.