Charlie Catlett is the founding director of the Urban Center for Computation and Data, UrbanCCD, which brings social, physical, and computational scientists together with artists, architects, technologists, and policy makers to explore science-based approaches to opportunities and challenges related to the understanding, design, and sustainable operation of cities. From 2007 to 2011 he was the Chief Information Officer at Argonne National Laboratory, and from 2004 to 2007 he was Director of the National Science Foundation's TeraGrid initiative - a nationally distributed supercomputing facility involving fifteen universities and federal laboratories. From 1999 to 2004 Charlie directed the design and deployment of I-WIRE, a dedicated fiber optic network funded by the State of Illinois, which connects research institutions in the Chicago area and downstate Illinois to support advanced research and education. Before joining the University of Chicago and Argonne in 2000, Charlie was Chief Technology Officer at the National Center for Supercomputing Applications at the University of Illinois at Urbana-Champaign.