Nadi

Nadi is Exceed from kingdom of Extalia, Minister of State uder Queen Shagotte command. He usually adding "Nya" (Japanese, "Meow") while he's talking and intensely waving his paw.

Edolas Arc
He is first introduced along with Nichiya, Captain of Imperal Guards, after capture Natsu, Wendy, and Lucy by Erza Knightwalker and her 2nd Militia Devision. He praises Charle and Happy for doing great job on their mission and then guided them to the Queen herself. He tells them that they all are Exceed, who are superior to humans and their Queen is in fact a god who has the power to kill every person in both Earth Land and Edolas. He is the one who reveals to Happy and Charle the details of their mission.

Later when Wendy tries to inform Exceeds about imminent danger he seems to be extremely scared rather than angry and throwing stones at Wendy and Charle. Eventually he protected Charle by one of the thrown stone because he was the only one who believes them at the time. It's very possible that he knew all the time the truth about the real nature of Queen of Extalia. After that he decides to go and help Charle for the sake of his country.

He overheard the argument between Mystogan and Pantherlily. After telling the 3 Dragon Slayers, they form a plan involving Natsu pretending to be "the Great Demon Lord Dragneel" and the cause of the missing magic. While Mystogan confronts Natsu, Nadi tells Pantherlily to get ready "for what we're gonna do."

Later Nadi with other Exceeds and Fairy Tail mages was sended to Earth Land. Apparently, his hand shaking habit is contagious, since Natsu, Erza, Gray, and Lucy found themselves doing this involuntarily after they returned to Earth Land.