Goliath was a mercenary giant employed by the Philistines to fight for them in the war they fought with the Israelites in Biblical times. He was ultimately slain by a young boy armed only with a catapult.
Behind the scenes
- Goliath is based on the Biblical figure of the same name. In the book 1 Samuel of the Old Testament, King David slays the giant Goliath with a slingshot as a child, but the Chocolate Frog Card for Goliath only refers to the giant's slayer as a "young boy" and does not explicitly name David. It is thus possible that Goliath was not slain by David in the Harry Potter universe.