Jean-Luc Neville

Jean-Luc is an archaeologist and the leader of the Archaeological Society, a group of archaeologists whose goal is to preserve the archaeological sites of the kingdom of Fiore.

Key of the Starry Sky arc
Being the head archaeologist of the Archaeological Society, Jean-Luc is interested in both the Infinity Clock and the ruins were the parts of the clock's are. So having heard rumors of Fairy Tail's journey, Jean-Luc approaches Lucy's group and try to dissuade them from pursuing the infinity clock. But upon learning her identity and her resolution in following her father's dying wish, Jean-Luc, who seems to have known some time in his life Lucy's father, has a change of heart and uses his team's Magic to return Natsu to his original size and wishes them to succeed in its purpose of finding the clock but without break the ruins.

Magic and Abilities
Dispelling Magic: With the help of the other members of the Archaeological Society Jean-Luc can use Dispelling Magic, being able to erase Dan Straight's spell and reverting Natsu to his original size.