D-6 is a villain from Fairy Tail. He is a member of Avatar.
D-6 is a large masked figure who wears armor on his body.
Like other Avatar members he is present at Arlock's speech. When Jerome and Briar suspect Gray to be the traitor, D-6 remarks that they know each other since half a year. After Natsu defeated Abel and Goumon he tries to sneak attack Natsu and his eye starts to glow. Natsu takes him out with a kick to the face from behind. During "Operation Purification" he is seen along the other elite members. When Jerome takes on Erza, D-6 stays with Abel in the battlefield. When Natsu destroy Ikusa-Tsunagi he tells the other members to stay, but is defeated along with Abel by Gajeel and Pantherlily who arrest him.