Deimos depicted on the shield of Leonidas I, King of the Spartans, on the monument to the Battle of Thermopylae.
Deimos was a demon, the son of Aphrodite and Ares. He had a twin brother, Phobos. Deimos was the God of Fear and Terror. He is depicted carrying a sword, known as Deimos' Sword of Dread. His Latin name is Formido, or Metus.
Deimos, as portrayed in the God of War game series
One of the moons of the planet Mars is named after Deimos. It is a dark, rocky moon about 12x16 km in size. It rotates around Mars about every 30 hours. It rises in the east and stays above the horizon for several days.