Peter MacNicol (b. April 10, 1954) voiced a number of characters including: * David Clinton/Chronos for the animated series Justice League Unlimited * Kirk Langstrom for the animated series The Batman * Jervis Tetch for the video games Batman: Arkham City and Batman: Arkham Origins * Professor Ivo, Amazo, and MONQI for the animated series Young Justice * __NOEDITSECTION__