Family Ties:
* Jim Hawkins: The protagonist of the story. He is an orphan who lives with his mother and the innkeeper, his stepfather, at the Admiral Benbow Inn.
* Billy Bones: A pirate with a mysterious past. He is Jim's lodger at the inn. It is later revealed he was a member of Captain Flint's crew and is hiding from his former shipmates.
* John Silver: A one-legged pirate who initially appears as a friendly cook on the Hispaniola. He is a complex character, both loyal to the treasure and potentially a father figure to Jim. It is later revealed that Silver was Flint's first mate and, in fact, orchestrates the mutiny.
* Captain Smollett: The captain of the Hispaniola and a seasoned sailor. He is Jim's role model, teaching him about seamanship and courage.
* Ben Gunn: A castaway marooned on the island for three years. He becomes an ally to Jim and the good pirates.
Alliances & Conflicts:
* Pirates vs. The Crew: The pirates, led by Silver, mutiny against Captain Smollett and the loyal crew members.
* Jim's Loyalty: Torn between his loyalty to the good pirates and his initial admiration for Silver, Jim ultimately chooses to side with the righteous.
* Silver's Motives: Silver's loyalty is complex. He appears to care for Jim and sometimes acts out of genuine concern, but ultimately his greed for the treasure dictates his actions.
* The Treasure: The ultimate goal for both sides. It is the driving force behind the conflict and the source of much tension.
Other Important Relationships:
* Dr. Livesey & Squire Trelawney: Friends of Jim's father, they help him navigate the dangers of the island.
* Israel Hands: A pirate under Silver's command, known for his ruthlessness.
* Long John Silver & Billy Bones: Former shipmates of Captain Flint, they share a history of violence and greed.
Overall:
The relationships in Treasure Island are built around the themes of loyalty, betrayal, and the moral conflict between greed and honor. The characters are not always easy to categorize, and their motivations are often complex. This makes for a captivating story with plenty of suspense and intrigue.