Maurice LaMarche, the voice of the Brain in Pinky and the Brain, is also the voice of Mr. Freeze in Batman: Arkham Underworld. Sonic Concepts Media did the sound editing, sound design, mixing and mastering for this project. Batman: Arkham Underworld is a FREE game from Warner Brothers available on the iOS App Store for iPhone 5 or later, iPad Mini 2 or later, and 3rd Generation iPad or later: