Grandpa Joe

Grandpa Joe Bucket is a 96 1/2 year old character in the book Charlie and the Chocolate Factory.  He is the grandfather of Charlie Bucket.  Grandpa Joe is notable for his great knowledge of Willy Wonka and his factory.

History (will contain spoilers) 

Grandpa Joe was born in January 7, 1867 and married Grandma Georgina in March, 1885 and gave birth to Mrs. Bucket in June 22, 1929. All four had not been out of their bed since 1944.

This changed when Charlie found his Golden Ticket, and Grandpa Joe was so excited that he jumped out of bed and did a dance. To some, he was revealing his selfishness, but to others, he was celebrating Charlie's good luck. He went with Charlie to the factory and they took the whole tour, until Charlie was the only child left who didn't fall victim to a seemingly dangerous accident.

While here, he purposely stole, although this can be excused by the fact that food was scarce in the family. After this, Charlie, Grandpa Joe, and Wonka all went inside the Great Glass Elevator and Wonka pressed the Up and Out button to send the elevator through the roof of the factory and flying in the air to go and gather Charlie's family, because Charlie had won the factory.