Theodore ‘Teddy’ Roosevelt, also known as T.R., was a male dognose (or, according to certain sources, an anthropomorphic pig) who is now a ghost.
The 26th president of the United States of America, Theodore Roosevelt spent some time as a cowboy in the badlands, learning to appreciate nature and adventure. There, he met a young Scrooge McDuck, whom he would repeatedly bump into throughout his life.
By 1902, Roosevelt had become the President of the U.S.A., not shying away from the position's military aspects, and claiming that the three great nemeses he campaigned strongest against were "big business, foreign interference, and military threats to the U.S. shores", something which comically led him to lead an armed assault on Fort Duckburg when he hears a Scottish plutocrat had come to take it over (an incident which ended in a warm reunion by a campfire).
In 1906, still President, he oversaw the construction of the Panama Canal (where he once more encountered McDuck). At some point in-between these events, a couple of candystore owners had invented a new kind of toy and named it the Teddy Bear — something both Roosevelt and his wife found rather charming.
After the end of his mandate, Roosevelt retired from politics, devoting himself to world travel, before eventually passing away. Like his predecessors', his ghost came to be one of the guardians of the Spark of Life within Mount Rushmore, and this led to him meeting Scrooge's nephew Donald Duck (alongside his friends José Carioca and Panchito Pistoles) in the early 1940's.