Merlin was a legendary wizard, associated with King Artorius and Camlann. The hero Taliesin was said to be his pupil and on Bardsey Island Merlin served as keeper of the Thirteen Treasures of Britain sought by Artorius.
The mysterious The Book of the Spells of Merlin was attributed to him.
Deirdre Campbell Jones possessed a golden scroll that proved Merlin's historical existence, that was crucial for the resurrection of the Druid Order.
- Indiana Jones and the Dance of the Giants (First appearance)
- Indiana Jones and the Seven Veils
- Indiana Jones and the Genesis Deluge (Mentioned only)
- Indiana Jones and the White Witch (Mentioned only)