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. (TV: Spearhead from Space)

Behind the scenes
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.