Doros

Doros was the assistant to Hektor, owner of a blacksmith shop in Athens in 410 BC. Doros helped him melt down a statue of Athena to gold to help the government. Later, he was attacked by a hydra in the shop, but the Doctor successfully stopped it.

The Time Lord had Doros and Hektor build a sword that could stop Ares. (COMIC: The Chains of Olympus)