Main article: The Sword in the Stone
Archimedes is Merlin's companion, whom he accompanies when he wants to become Wart's tutor, with Archimedes also helping Wart with lessons such as the alphabet, or teaching him to fly when Merlin turns him into a bird. After an argument between Wart and Merlin in which the latter leaves, Archimedes stays by his side, witnessing how Wart takes out the Sword in the Stone, becoming known as King Arthur. Desperate from the pressure, Arthur calls Merlin, who along with Archimedes stays by his side while he reigns.
Archimedes appears as a metallic owl and acts as a defense mechanism that is stationed inside Merlin's office. To prevent Red and Chloe from taking the Sorcerer's Cookbook, he flew out to warn Merlin.