The Ringmaster appears as the main antagonist in Boop-Oop-a-Doop. He owns the circus and is Betty Boop's boss. He can be seen announcing every event that happens in the circus. Betty Boop performs Do Something on the highwire, as Betty returns to her tent, the ringmaster follows her inside and sensually massages her legs, surrounds her and threatens her job if she does not submit. Betty begs the ringmaster to cease his advances. Betty sings Don't Take My Boop-Oop-A-Doop Away.Koko the Clown who also works at the circus as the clown is outside, practicing his juggling, and hears the struggle. He leaps in to save Betty's virtue, struggling with the ringmaster who loads him into a cannon, firing it, thinking that he has sent the hero away, laughing with self-satisfaction. But Koko is hiding inside the cannon, and strikes the ringmaster out cold with a mallet, returning with "the last laugh".