Willie the Jolly Olly Man is a recurring character and semi-antagonist of the Nickelodeon animated series Hey Arnold. He is an unfriendly ice cream salesman who drives the Jolly Olly Ice Cream Truck. Arnold describes Willie as a stingy, mean spirited jerk, who hates kids and is constantly teetering on the brink of insanity.
Willie makes his major appearance in three episodes:
In the episode "Heat", while the children try to get some ice cream due to the heat. Willie charges them 20 dollars (which the children don't have enough money for ice cream). Eugene wants to take a snow cone, and Willie charges 18 dollars for that. But Eugene has only 70 cents and asks what he will get for 70 cents, then Willie laughs evilly and yelled out "nothing". Later Arnold starts a riot against Willie and chants "No ice cream no peace". After that, Arnold tries to stop the riot and stand up for Willie, but the children try to flip Willie's ice cream truck. Then the rain comes, and Willie drives away from the children.
In the episode "Career Day", Willie has become a terrible mentor to Arnold, having him sit in the freezer and forbidding him to talk to customers or handle money. Then Willie evilly threatens to give Arnold an "F" and soon after Willie's boss/dad comes amd says that if he doesn't sell his whole stock by 6:00 he will be fired. Then Arnold learns about Willie's perspective. Arnold agrees to help him sell his whole stock. Arnold teaches Wille to be more friendly to his customers and to earn the respect of the neighorhood children. While a half of freezer full, Willie sells out his whole stock to the other kids and their mentors for Career Day. Willie keeps his job and gives Arnold an F (for Friendly), but Arnold actually gets an "A". Then Willie tells his boss/dad that he wins this time.
He is the main antagonist of the episode "Grandpa's Packard", where as Wille gets into an accident by Phil, and so then decides to start getting revenge on Phil. Willie followed Phil to the Car Show and disguises himself as Ivana Divancevic, then he steals Phil's packard and paints it red. Later Arnold and his grandparents catch Willie, and he admits that it was to get even with Phil. After the police arrive, Willie apologizes and Phil forgives him and won't press charges if he paints the packard green again.