The Loudest Yard
Him and Hank were introduced in the episode "The Loudest Yard" as unnamed members of the Hazeltucky Hockers, a junior varsity football team who are rivals to the Royal Woods Roosters, the team that Lincoln Loud is on.
The both of them had a more prominent role later on in the series' Halloween episode "Tricked!" In it, Lincoln and Clyde convince them that they should do their trick-or-treating on Franklin Avenue to avoid having them find out that Huntington Manor is a better place to do so. In actuality, however, Hank and Hawk use this advice and trash the neighborhood, scaring away all the younger trick-or-treaters and and stealing all their candy. When Lincoln and Clyde find out what happened, they feel guilty and decide to set things right, secretly following Hank and Hawk to their tree house. After Lincoln and Clyde's first attempt to recover the candy fails, they successfully lure Hank and Hawk into chasing them all the way to the haunted corn maze that Lincoln helped his sisters set up. There, Lincoln's sisters all take turns scaring Hank and Hawk out of their wits, culminating in Lucy drenching them in fake blood. This frightens the bullies so much that they run out, vowing to never return.
Hawk is a big, light-skinned boy, with brown hair, and he lacks a front tooth. He wears a dark khaki t-shirt, blue jeans shorts, and white shoes with three cyan stripes.