Nick McKelty is a bully but also a straight A student. He calls Hank bad names and is a bragger. Hank, Frankie, and Ashley made something called the McKelty Factor, which is Truth times 100 and is because of Nick's bragging. But he never misses an opportunity and is nice around Principals Love and Joy. He bullies Hank, mostly of his mistakes.
He also likes to get his own back on the unsuspecting Hank
He also has a father called Mick McKelty, who is a rival to Hank's dad, Stan Zipzer.
He does bad things to make Hank in trouble.
But twice had a brief friendship with Hank, until Hank accidentally did something wrong.