Archibald

From Homestar Runner Wiki

Archibald is one of the people associated with Decemberween's origins. Apparently a nautical man, little is known about him except that he tried to find the The First Decemberween, fought Dr. Christmas to the death on Mount Rushmore (which was never seen, and evidently wasn't "to the death"), and had a near-fatal encounter with a squid. In the Decemberween pageant, he was played by Strong Bad.