John Silver is a double-sider pirate who learns that friendship is more important than treasure and is one of Maleficent's freelance bounty hunters. He is a cyborg: part machine, part organic. His alien form resembles a cross between some sort of bear and man (and robot), identified as the alien species Ursid, though they never mention this in the movie itself. He has a cyborg arm, leg, ear and eye from some unknown incident, though he mentions when asked by Jim that "You give up a few things, chasing a dream.", so presumably they were lost in his search for Treasure Planet. His cyborg arm serves many purposes, such as cooking implements, a sword, a pistol and welding tool, and his cyborg eye has zoom functions and improves his aim, while his mechanical leg appears to contain an addition that he can put on his arm's mechanics to create a low-grade plasma cannon.
John Silver is the primary antagonist of his world, and something of an Anti-Villain (the villain's version of an Anti-Hero). An Anti-Hero's flaws are more prominent than their heroic qualities, while an Anti-Villain's good points are more prominent than their villainous qualities. Silver is rather greedy and cunning, having spent most of his life searching for the treasure of Captain Flint, but he has a caring side, too, and understands that friendship can be more important than treasure. He dislikes unnecessary acts of violence and cruelty, originally intending to mutiny only after the treasure was in hand, and thus, avoiding bloodshed as much as possible, and is generally honest and honorable in his piratical dealings. Nonetheless, he maintains a constant air of harsh brutality and deceptiveness around his crewmates, understandably necessary to maintain his position as their leader.
Role in Reconnect
Initially, Captain Amelia assigns him as the ship's cook, and gives him the task of looking after Jim Hawkins, Sora, and their friends. At first, they don't get along; Jim suspects Silver of being the cyborg who torched his mother's inn, and Silver doesn't enjoy having to look after Jim, concerned that he may get wind of the plans. He decides to give Jim and Sora so much work that they won't notice any plotting. However, as the journey passes and Silver gets to know how strong-willed and determined Jim is, they form a father-son relationship.
When Jim's confidence is dashed after Mr Arrow, the first mate, falls into a black hole, Silver realises that it must have been Scroop who did it, and tries to comfort Jim, convincing him not to give up.
However, soon after, Silver had to tell his mutinous crew, as well as Pete and Captain Hook, that he saw Jim as nothing more than a "nose-wiping little whelp" to keep them in line, and Jim hears this just as they arrive on Treasure Planet itself. When Jim escaped with the map, he could not bring himself to shoot him. He later apologized and offered Jim a deal on the treasure, his deal appearing genuine, but grew angry when Jim turned him down, and threatened to blast him to kingdom come, although he was also shown to not wish to do this.
Later, Silver captured Captain Amelia and Dr. Doppler, and took the map, and Jim and Sora along with it. When Silver finally got the treasure, Treasure Planet began to self-destruct, due to Hook's machinations, and Jim almost fell to his death. Silver had to choose between some of the treasure, or saving Jim. He chose Jim, which effectively saved his life as between them, they built a solar-surfer and Jim managed to save the entire remaining crew from destruction. Pete, angry with Silver's betrayal to Maleficent, summons the Dark Galleon to try and collect the darkness from Silver's heart. Sora manages to destroy the Heartless and rescue Jim and Silver in the process
Silver then attempted to escape the consequences of prison for his actions, but Jim caught him out. They exchanged a heart-warming goodbye, and Silver also gave Jim his pet shape-shifter, Morph, to have Jim remember Silver by. Just before Silver left, he gave Jim the few gems he had managed to salvage from Treasure Planet, enough for Jim to rebuild the Benbow Inn. During the credits, Jim looks up to the clouds and remembers John Silver, and the star/cyborg eye twinkles.