William L. "Bill" Todd is the Project Manager for NASA's NEEMO Team. NEEMO is the NASA Extreme Environment Mission Operations. He has led 21 Undersea Exploration and Research Missions with 61 astronauts/aquanauts, and accomplished hundreds of experiments involving the US Military, Universities, Govt. Institutions and private industry. Todd is a Program Manager for Exploration Analogs at the NASA Johnson Space Center. He has also served as a NASA Undersea Research Team Project Lead and Spaceflight Training Simulation Supervisor at NASA JSC. Todd developed the NASA Undersea Research Team for activities at the undersea Aquarius laboratory in Florida as a research facility for missions simulating short-term space habitation. Todd is a veteran aquanaut of three NEEMO missions and served as the project manager for NEEMO thru NEEMO 21. He worked as a Space Shuttle systems astronaut instructor for many missions including STS-31, the flight which deployed the Hubble Space Telescope, and on the first two flights to build the International Space Station. He also helped in crew training for the deployment mission of the Italian-made Tethered Satellite System and for the first flight to rendezvous with the Mir Space Station. He is a member of the University Space Research Associations and contributes to the futuristic design plans for a permanent undersea exploration vessel SeaOrbiter. He holds a Bachelor Science geoscience and paleontology from the University of Houston. He is a Member of the Explorers Club.