Wally Buchanan

Wally is an old friend of Erza's, having known her since childhood during their slavery days working on the Tower of Paradise

History
Wally was one of a couple of kids that were taken from their home and forced to build the R-System or Tower of Paradise. It was there he met Erza, Miriana, Shou, Shimon, and Jeral. The group attempted a few escape attempt but all usually failed. One day when the guards we're threatening his friends due to Shou's crying, Erza rose up against them and inspired her friends and the other slave to do the same. It was this battle that he witnessed Erza come into her magic powers. Eventually the slaves were victorious and were set to leave the island. While looking through the supplies their captors had, he came across a movie crystal (crystal with movies recorded on them) of a western movie, which he found cool and presumably shaped his obsession with being "Dandy". After Jeral become controlled by Zeref, he takes control of the tower and summons his friends to finish it after kicking Erza out. Branding her a traitor when she refuses to go along with Jeral's wishes and framing her by blowing up the ship the slave intended to use to escape to convince her friends and help finish the tower. Eight years later, the group completed the tower.

Tower of Paradise Arc
Wally appears in a casino where Team Natsu is currently vacationing, introducing himself to [[Natsu when the latter complaining about losing a game then promptly ambushes him pinning him to the ground and sticking a gun in his mouth. When Shimon's use his lights out magic to throw the room in darkness, he shoots Natsu leaving him for dead then regroups with Miriana, Shou, and Shimon to kidnap Erza (as well as Happy which he gives as a present and take her back to the Tower of Paradise. Unknown to him however, Natsu survived thanks to his Dragon slayer magic.

Later Natsu's group invade the tower to rescue their friend. Natsu finds Miriana's room and while fooling around with one of the costumed cat heads, Wally tries to ambush him only to be stopped by Miriana (as she loves cats and doesn't want to harm him since he looks like one). After Wally convinces her that Natsu the enemy, the two double team him and manage to gain the advantage. Just as he about to kill the dragon slayer, Happy intervenes and stops Wally. With Happy on the scene, Miriana hampers Wally's attacks allowing Natsu to knock out both in an instant.

Wally manages to recover and tries to continue the fight, but is interrupted by Jeral who announce what the Magic Council intends to do. Realizing Jeral true intention, Wally a bit dishearten till Natsu cheers up then proceeds fro the top floor.