Duncan, Michael Clarke (1957-2012) Actor, provided the voice of Tug in Brother Bear and Brother Bear 2. He also did voices in The Proud Family, Air Buddies, Kim Possible: A Sitch in Time, and George of the Jungle II. He appeared in Breakfast of Champions (Eli) and Armageddon (Bear), and on TV in The Suite Life of Zack and Cody (Coach Little).