Rao

Rao was a red star that Krypton and Argo orbited. The Kryptonians once held Rao as a god, and many still worshipped it even into the time of Jor-El and Jax-Ur.

Superman: The Animated Series

 * "The Last Son of Krypton, Part I
 * "Blasts From the Past, Part II" (Mentioned Only)
 * "Little Girl Lost, Part I"
 * "Absolute Power" (Mentioned Only)

Justice League Unlimited

 * "For the Man Who Has Everything" (Mentioned Only)