Boris Boudnikov

Boris Boudnikov is a Bulgarian tumbler, trapeze artist, ring master, and the circus camp counselor of Boudnikov's Circus, seen in "Francine's Big Top Trouble." He is very flexible and athletic. He trained Arthur and his friends in many of the events in the circus except for clowning. He trained Francine's sister, Catherine, in tight rope walking in a previous year.

Trivia

 * He is a caricature of Igor Boudnikov, the supervisor of character design from around seasons 10 to 15.
 * He makes a brief cameo in "The Director's Cut".