Boris Boudnikov

Boris Boudnikov is a tumbler, trapeze artist, ring master, and is the circus camp counselor 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

 * His name is a reference to Boris Badenov, a main antagonist of The Rocky and Bullwinkle Show, especially to the Bumbling Brothers Circus story arc during the show's fifth season.