The chief clown was the head clown of the Psychic Circus. His face painting resembled that of a pierrot clown. He had originally been one of the free-spirited entertainers of the Psychic Circus, who was in charge of a group of robotic clowns, but after the circus settled on the planet Segonax, he and the other circus members were forced to entertain the Gods of Ragnarok.
The chief clown was apparently in charge of the circus' security; while in this capacity, he and the mute robot clowns lured people into the ring where they were killed for entertainment. Not wanting to lose his control over the circus, he wore undertakers' clothing and travelled in a hearse with dark-tinted windows, hunting down escapees such as Bellboy and Flowerchild.
He and a group of his robot clowns searched for Ace, Mags and Kingpin after they escaped from the circus. The clowns soon located the trio, but Ace activated a robot built by Bellboy, which, after destroying the robot clowns, killed the chief. (TV: The Greatest Show in the Galaxy)