Nadi

Nadi is an Exceed from kingdom of Extalia, Minister of State uder Queen Shagotte command. He is 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 the capture of 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 didn't throw stones at Wendy and Charle when the others did. Eventually he protected Charle from his fellow Exceeds because he was the only one who believed them at the time. 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 was sent to Earth Land with the other Exceeds and Fairy Tail Mages. Apparently, his hand shaking habit is contagious, since Natsu, Erza, Gray, and Lucy found themselves doing this involuntarily after they returned to Earth Land. After the Extalia elders confess the truth about Charles birth, Nadi confeses he was lying about the mission to bring the Dragon Slayers home, hoping to conceal the truth. After Shagotte hugs her daughter goodbye, Nadi leaves to roam Earthland with his fellow Exceed.

Magic and Abilities
Caster Magic User: Nadi uses the Magic ability that all Exceed have, Aera, allowing the user to sprout feathery wings that apparently grant flight while neutralizing the weight of one passenger/object.

Trivia

 * His head seems rounder in the anime while in the manga it is completely rectangular.