Who is the central character of 'The Old Man and the Sea'?

The Old Man and the Sea, a short heroic novel by Ernest Hemingway, was published in 1952 and awarded the 1953 Pulitzer Prize for fiction. It was his last major work of fiction. The story centers on an aging fisherman who engages in an epic battle to catch a giant marlin.
The central character is an old Cuban fisherman named Santiago, who has not caught a fish for 84 days. The family of his apprentice, Manolin, has forced the boy to leave the old fisherman, though Manolin continues to support him with food and bait. Santiago is a mentor to the boy, who cherishes the old man and the life lessons he imparts.

Source: Britannica