Alzack Connell is originally from the West, he came to Fairy Tail as an immigrant and joined the guild. He was first introduced in chapter 2 and episode 9.
Alzack has a crush on another member of the guild named Bisca Mulan, but he is too shy to confess to her. Loke jokingly implied that if Alzack doesn't confess then he would. Alzack now sees Loke as his rival.
(Source: Fairy Tail Wikia)