Who is the chief of staff of the army navy air force marines?

Admiral Mike Mullen is Chief of Staff for the U.S. Navy, and is the current Chairman of the Joint Chiefs of Staff.

General James E. Cartwright is Chief of Staff for the U.S. Marine Corps, and is the Vice Chairman of the JCS.

General Martin E. Dempsey is the Chief of Staff of the U.S. Army. He is currently the nominee (pending Senate confirmation) to replace retiring Admiral Mike Mullen as the next Chairman of the Joint Chiefs of Staff. General Raymond T. Odierno is the nominee to replace Dempsey as the next Army Chief of Staff.

General Norton A. Schwartz is the Chief of Staff of the U.S. Air Force.