Zachary

Zachary is a teenage boy seen hanging out with Quinn Morgendorffer and the Fashion Club in the episode "Monster." He has a long face, and shoulder-length wavy brown hair. It is unclear whether he is a student at Lawndale High, though circumstantial evidence seems to suggest that he does.

Zachary in Canon
Zachary's lone speaking appearance is in the episode Monster, where he gives Quinn and the Fashion Club a ride to the mall. Quinn treats him dismissively, referring to him as "guy" and "Aaron" and sending him off to buy her something from Cashman's as soon as they arrive at the mall. Earlier in the episode, Quinn points out that she was dating Zachary because her first choice, Larry, totaled his care, and "Zachary has his mother's car." He doesn't have a speaking role in any other episodes.

Zachary in Fanfiction
Zachary makes an appearance in We All Fall Down Part I of Turnabout Confusion by Dennis, as one of the boys who Daria dates in her efforts to win the bet with Quinn. He's portrayed as more perceptive and less obnoxious than Corey, if no less horny. He tells the football team that Daria's change in appearance "has something to do with Quinn," and expresses the hope that he can move fast with Daria if he strikes "while the iron is hot." After being refused for a second date and some threats from Mack, he backs off and isn't seen in Part II.