Dukeson Leonard "Dukey" Test is Johnny's pet dog brother and the deuteragonist of the show. Johnny got him as a birthday gift for his 11th birthday and he was later mutated by Susan and Mary, giving him the ability to speak and walk on two legs.
Dukey has been suggested to play 9 roles. Click below to see other actors suggested for each role, and vote for who you think would play the role best.
