Puck

Personal servant of Oberon
995: Banished to the human world, along with the rest of the Third Race
20th Century: observed Titania's human disguise, joined her husband’ employment
Disguised himself as a human, created the identity of Owen Burnett
Left Renard’s employment, worked for Xanatos, whom he thought of as a kindred spirit
Revealed his identity Xanatos, offered him 1 wish or a life time of service as Owen
Xanatos chose Owen's service, became Xanatos’ loyal right-hand man
His fist was turned to solid stone by the magic Cauldron of Life
Banished forever from Avalon by Oberon after he helped Xanatos save his son from him;
Also trapped as Owen by Oberon, can only be Puck or use magic to train or protect Alex