Answer: Dwalin
Dwalin was the first to knock on the round green door of Bag End, surprising and confusing Bilbo for, after all, it was an unexpected party. The dwarf greeted Bilbo with "Dwalin, at your service" followed by the baffled reply,"Uh... Bilbo Baggins at yours", before placing his dark green hood on the coat hanger. He also ate Bilbo's supper while he was looking for the food that was supposed to be offered to the dwarves. After Dwalin came, his older brother Balin got to Bagend, followed by, Fili and Kili, and so on. The character Dwalin is more of a warrior type of dwarf. He caries paired axes on his back and knuckle-dusters on his tattooed hands, something that gives him a more tough and dangerous look.