Teotras was a Centaur Mammalian Warrior Beast, briefly first shown on Episode 52 of the Great Mazinger Anime, which also featured Jerunicas. He had a Shield for a Right hand and held a Spear on the other which could discharge a laser attack to a target, and capable to block and break through Great's Great Bur, as well could launch missiles from the ports along its wingspan – his real face was located right under the upper body, in the front end of horse mount. He had a Grey, Dark Red, Orange and Purple color scheme.

In the episode, Teotras attacks a city on its way to a nearby Atomic Power plant – Great is sent out to fight it. As the two fought, he was able to fend off most of Great's Attacks, including blocking the Great Burn with its Spear Laser. Great and Teotras their duel in the power plant and Great cut its Shield Arm with the Great Boomerang, then to avoid any further damage to the plant, Great guides Teotras to a safe distance as it fired its laser. Once away from the plant, Great stuns Teotras with a high jump kick, Teotras turns around and throws its spear, but misses Great.

The two then had a stare showdown, expecting the others next move, as they walk around the Spear – Teotras launches its missiles, Great avoids it and charges up for a final attack, Teotras grabs the spear and attempts to impale Great, but Great disposes of him with the Thunder Break, its spear hitting the ground close to the fiery remains of the Warrior Beast.

The ending of the fight was witness by Shinichiro Okiwa, a former childhood friend of Jun, who would foolishly become the Warrior Beast Jerunicas.

Teotras other known appearances in the franchise were in Mazinkaiser vs the Great General OVA, and Shin Mazinger Zero vs the Great General Manga.