Bellboy

Bellboy built and repaired the robot clowns at the Psychic Circus on Segonax.

Biography
Bellboy ran away with Flowerchild from the circus, but Flowerchild was killed by the bus conductor robot. He was recaptured and forcibly brought back to the circus by the chief clown and the robot clowns in their dark-windowed hearse.

When Bellboy realised that he was unable to run away again, and somewhat unhinged by all his ordeals, he programmed the robots to kill him. (TV: The Greatest Show in the Galaxy)