Tethys

Tethys, despite being named after a Greek Goddess of the Sea, is male and is the Star Guardian of Mercury. He is one of the 10 star guardians that follows Ultron's wishes and assisted the four chosen children in defeating Sauron and his minions. After being separated from his fellow star guardians, he landed in Mercury, where he hid himself inside a cavern at the bottom of a ravine.

Tethys' personality is rather stoic and he acts as tactician for the group. Tethys primarily uses a sniper rifle in combat. For close combat, he uses a beam sword, drawn from the bottom of his rifle's grip. Attached to his back is dome like structure that, when viewed through, Tethys can see much further than any ship or star guardian can. Upon summoning his star energy, he performs his special attack called Space Sniper, which enhances his accuracy, range, and firepower in a way that he can destroy a line of targets in one shot.

Tethys is the reason for Panla's right eye going blind.