Brain (Igor)

Brain Plays The Porcupine in Robyn's Song (CartoonNetworkandHasbroFan360 Style)
He is a porcupine.

Brain Plays Bartok in Heidistasia (CartoonNetworkandHasbroFan360 Style)
He is a bat.

Brain Plays Fetcher in Toontown Run and Toontown Run (CartoonNetworkandHasbroFan360 Style)
He is a mouse.