Trivia. There has been hints by many characters that Castiel is God's favorite angel, due to his resurrections and improvements to his powers by the latter's hands. Castiel's resurrections has caused him to be known as God's chosen as he has earn the envy of many angels.

The Grand Priest is said to be the most powerful of all the Angels, and he serves as the right-hand man to the Omni King himself. In addition to being Zen-Oh's attendant, the Grand Priest is considered to be one of the most powerful fighters in the universe.