Greylock was the royal sorcerer of Rudistan. He is an old school friend and rival of Cedric, the royal sorcerer of Enchancia. Like Cedric, Greylock wanted to overthrow his own king, so he joined the Order of the Wand to make it happen, but was eventually defeated when Cedric had a change of heart.
He likes to pull pranks on Cedric, such as zapping him an electric buzzer when greeting him. He tried to outdo Cedric when entertaining the kids during Enchancia's royal jubilee, but when a problem arose in saving them, Cedric assisted, and gained Greylock's respect.