Cosmos only appears as a pair of great eyes formed of energy and reflecting the universe.
Cosmos employs servants in the form of Cosmonauts who start lifecycles on worlds and prevent wanton destruction of Cosmos's creations.
Cosmos is the ultimate representation of cosmic powers and no one would have them if not for him. Cosmos can fold space, cause supernovas, create suns, and vaporize planets instantly.
Cosmos is patient, but does not tolerate insult to his creations outside the balance. He seldom appears himself, but when he does, he shows little mercy.