Lars
Lars (voiced by Matthew Moy) – A teenage worker at a donut shop called the Big Donut. He often picks on Steven, but has become friendlier towards him in later episodes. He admires the "cool kids" (Jenny Pizza, Sour Cream and Buck Dewey), and his attitude stems from his own insecurity and loneliness, rather than deliberate cruelty. He has stretched earlobes, called gauges.
In "Island Adventure", Lars kissed Sadie, and as of this episode, it's implied he has a crush on her. In this episode, he also mentions that he gets lonely even when he is around other people, leaving speculation that he may not have any real friends besides Sadie. In episodes such as "Joking Victim", he leaves all of Steven's messes for Sadie to pick up, but in following episodes seems to do his share of the work more often. He was friends with Ronaldo as a child before his anxieties caused a misunderstanding and ultimately a falling out between the both of them.
Source: Wikipedia