Zack is characterized by his charm and wit, as well as his laziness and mischievousness. He is often seen as the ringleader of the group of friends, and is always coming up with new schemes. Zack is also known for his catchphrase, "Oh, man!"
Throughout the series, Zack has several relationships, most notably with Kelly Kapowski and Lisa Turtle. He also has a close friendship with Screech Powers.
After graduating from Bayside High School, Zack goes on to attend college at the University of California, Berkeley. He eventually becomes a successful businessman and marries Kelly.