Basically, the main character of a story, the person you want to succeed, is the "protagonist." The "antagonist" is the character that opposes the protagonist.
Claudius was hamlets Uncle and later became his stepfather because his mother Queen Gertrude married Hamlets uncle "Claudius".
Silas is portrayed as a loyal and hardworking farmhand who returns to the farm of Warren to seek help in his old age. He values the relationships he has built over the years and reflects on the choices he made in life. Silas highlights themes of loyalty and friendship in the poem "The Death of the Hired Man" by Robert Frost.