Who was marooned on island and was friends with Friday?

The character marooned on an island and befriended by Friday is Robinson Crusoe, from Daniel Defoe's novel "Robinson Crusoe." After being shipwrecked on a deserted island, Crusoe encounters Friday, a native man whom he saves from capture by cannibals. They develop a close friendship, and Friday becomes Crusoe's loyal companion, helping him survive on the island. Their relationship explores themes of civilization, cultural exchange, and companionship.