Dexter the Royal Mage
Dexter the Royal Mage is the Royal Mage of Castle Britannia. Before his appointment to the post of Royal Mage, he was apprentice to Kronos and hasn't been seen since the catastrophic events in Moonglow (the Blackrock Detector).
He also gave out the Ranger of the Abyss Part 1: A Light in the Darkness quest which is no longer offered to players.