Oliver is one of Baby Piggy's dolls. The floppy stuffed clown is featured in the 1987 Muppet Babies storybook Baby Piggy's Night at the Ball. Baby Piggy imagines getting ready for a costume ball with her dolls Esmerelda, Giselle and Oliver. Piggy decides to go as a Fairy Godmother, Esmerelda as a cowgirl and Giselle as a ballerina, but Oliver decides to go as a clown, since that is what he always is. The other dolls object, but Piggy disagrees and lets the clown escort the three to the ball.