Thomas Alfred Shannon,, United States ambassador to Brazil, former federal agency administrator.
Shannon,, Thomas Alfred was born in 1958.
Bachelor, College William and Mary, 1980. Master's in Politics, Oxford University. Doctor of Philosophy, Oxford University.
Consular/political rotational officer United States Embassy, Guatemala City, Guatemala, 1984—1986. Country officer Cameroon, Gabon, Sao Tome, Principe, 1987—1989. Special assistant to United States ambassador to Brazil United States Embassy, Brasilia, Brazil, 1989—1992.
Regional labor attache United States Consulate General, Johannesburg, 1992—1996. Political counselor United States Embassy, Caracas, Venezuela, 1996—1999. Director Inter-American affairs National Security Council, 1999—2000.
United States deputy permanent representative to Organization of American States United States Department State, 2000—2001, director Andean affairs, 2001—2002, deputy assistant secretary for western hemisphere affairs, 2002—2003, assistant secretary, 2005—2009. Senior director western hemisphere affairs National Security Council, 2003—2005. Special assistant to President The White House, 2003—2005.
United States ambassador to Brazil United States Department State, Brasilia, since 2009.