Cerberus Cerberus Cerberus S2E20 thumb

Cerberus in It's About Time Kind Dog Residence Tartarus Occupation Guardian of Tartarus Other links Creatures image gallery More info Main article: Cerberus Cerberus is a giant three-headed dog that first appears in It's About Time. According to Twilight, Cerberus is responsible for guarding the gates of Tartarus and that, with Cerberus away from Tartarus, the "ancient evil creatures" imprisoned there could escape and destroy Equestria.

In Greek and Roman mythology, Cerberus, or Kerberos, was a multi-headed dog-like beast with a serpent's tail that was responsible for guarding the gates of Hades and keeping the dead from leaving. Heracles was sent to capture Cerberus as one of his twelve labors.