Penny Zuckerburg is the sole main female character in #ComingOutOnTop. Penny was a roommate of Mark and Ian at Orlin University. She is a computer science major whose ambition is to create an app that will make millions. She is also hot-headed and determined, and will and willing to work long hours coding her app at the computer lab. Often the most sensible one in the group as she offers good advice for her friends.