The Banana Brothers Igor & Serge are a pair of men from Moscow, Russia that run a travelling monkey circus. They are voiced by Phil Proctor & Abe Benrubi, respectively. They appear to be the only people running the circus, as well as the only humans in the circus. Whether or not they are truly brothers is unknown. When the babies are found by their parents and police, the Banana Brothers exit a police car and are reunited happily with their monkeys, who then proceed to jump on an injured Rex Pester to everyone else's delight.