Theodore Roosevelt

 was a President of the United States. His waxwork replica appeared in Madame Tussauds when the Third Doctor and Liz Shaw visited to investigate the first Auton invasion of Earth. (DW: Spearhead from Space)
 * Of all the presidents on the tableau at Madame Tussauds, Roosevelt is the least obvious. He's very briefly seen in the gap between JFK and Nixon.