The Sesame Street Circus of Opposites Author:Emily Perl Kingsley, Nancy W. Stevenson (Illustrator) Cookie Monster and Betty Lou enjoy the Circus of Opposites, with Guy Smiley as ringmaster. Various Muppet characters perform different acts; Herry walks the tightrope, showing wet and dry, Frazzle and Barkley show first and last with a line of clowns, and Big Bird and Little Bird with (of course) big and little.