Dee Bradley Baker (born August 31, 1962) is an American voice actor and comedian. best known for the voices of Squilliam Fancyson on SpongeBob SquarePants and Klaus Heissler on American Dad!. and also for the voice of Wallabee Beetles a.k.a Numbuh 4 on Codename: Kids Next Door. He has voiced Clock King, Etrigan, Felix Faust, The Brain, Chemo, Scarecrow, Ace the Bathound, Oberon, General Ramjam, Dove, Brother Eye, Global Peace Agency Operative, Fisherman, Professor Zee, Tin, Professor Milo, Animal-Vegetable-Mineral Man, Starro, Haunted Tank, Madniks, Bug-Eyed Bandit, Copperhead, Mister Atom, Misfit, Warren Griffith, Vincent Velcro, Pvt. Elliot "Lucky" Taylor, John Wilkes Booth, Punchichi and Krypto The Super-Dog in Batman: The Brave and the Bold.