Bozo

Bozo is an unidentified white ball who is being chased by an unknown shadow in Welcome Back. Golf Ball has a flashback when she and Tennis Ball enter the abandoned science museum, and she sees this character feverishly sweating while running for cover behind a flower pot. Not soon after, the unknown shadow starts to beat the pot with a spiked club while saying various things like, "Where are you, Bozo?" and "You need punishment!" The flashback ended seconds before the pot is about to break.

Trivia

 * His asset is just a whiter Golf Ball without dimples.
 * He might be a young version of Golf Ball.
 * However, if he is a young version of Golf Ball, then the dimples might possibly be made from the spikes on the baseball bat.