Uosuke

Uosuke (ウオスケ Uosuke) is a member of the Garou Knights, the most powerful executioners of Fiore.

He appears to be extremely light-hearted, wearing a smile on his face at all times (maintaining said expression even as he remarked how he can become angry if insulted), and even dancing casually while readying for a fight. True to his appearance, he's shown to be fond of everything related to fishing, using his Terrain Effect: Gravity Zone spell as a "fishing pole" (and referring to such technique's targets accordingly) and drooling in excitement as Yukino Aguria summoned the Celestial Spirit Pisces (not unlike Fairy Tail's Happy); even the catchphrase he repeats continuously, "Tai" (タイ)/ is Japanese for the Sparidae family of fish. He also seems to be pretty naive, wondering whether humans can walk in lava when Arcadios stepped in such substance to save Yukino and Lucy Heartfilia, and showing relief when he realized the lava was actually having the desired effect. His status as an executioner displays his willingness to kill others through the use of his Magic, as noted by Arcadios; this condition, however, doesn't prevent him from showing shock or even fear if confronted with noteworthy enemies, with him sweating visibly and almost panicking when Lucy and Yukino's Celestial Spirits were summoned throughout their battle.

Manga Debut: Chapter 307
Anime Debut: Episode 180

(Source: Fairy Tail Wikia)