Roger is an anthropomorphic dog who was presumably cut from the first game. His full title was "Roger Dog", as he was to repeat over and over. ("Hi. I'm Roger dog." "I don't believe we've met. I am Roger Dog. Say, are you Roger Dog too?" "Have you seen my friend Roger Dog?")
It is believed he was removed from the game due to a negative image created by several hacking attacks on Disney's MMO Toontown Online by a player going by the name "Roger Dog", who placed several still bots named "Epic Mickey" around the online world.