Deimos and Phobos (Quest for Beasts)

Deimos and Phobos are the gods of fear and terror in Greek mythology. They appear in The Quest for Beasts episode Time After Time, in which they are voiced respectively by Michael Rosenbaum and Ty Olsson.

Biography
Deimos and Phobos are the sons of Ares, the war god. They joined forces with Hecate, the goddess of witchcraft, when she made an attempt to overthrow Zeus; the plan failed and Zeus had them banished from Olympus. Forced to live in Tartarus, Hecate along with Phobos and Deimos, and fellow exiled gods Eris, Thanatos and Nemesis began plotting to destroy the Olympians.