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Grandpa Joe, portrayed by actor Jack Albertson, is the loving and supportive grandfather of Charlie Bucket, the main protagonist in the classic 1971 film'Willy Wonka & the Chocolate Factory'. Despite facing financial hardships, Grandpa Joe remains optimistic and encourages Charlie's dreams of visiting the magical chocolate factory owned by the eccentric Willy Wonka. Their close bond and adventures in the factory form a heartwarming aspect of the film's narrative.