In the 1971 film Animal Treasure Island, the character referred to as Capitano Uncino or Silver is the captain of a pirate ship. He is a fearsome pirate captain who serves as a central figure in the story's treasure hunt. The protagonist Jim, his mouse friend Gran, and the young girl Kathy sail aboard this captain's vessel as they journey to locate the treasure left behind by the infamous pirate Flint. The character's primary role is as the commanding officer of the ship that carries the main characters on their adventure. The narrative establishes him as a formidable presence, described using terms that convey terror, aligning him with the antagonistic forces the young protagonists must contend with during their quest. His identity merges the captaincy with the Silver name, drawing from the tradition of the original literary character while being adapted for this unique animated interpretation where humans and anthropomorphic animals coexist. The captain's motivations are tied to the pursuit of Flint's treasure, positioning him as a key player in the central conflict of the story.