Zane Walker is an American student, and a good friend of James Potter. He attended Hogwarts his first year of wizarding school as part of an American exchange program, and continued afterwards at Alma Aleron. Because of this, his communication with James after his first year was ultimately limited. He is also good friends with Ralph Deedle, and has a sister named Greer. He is usually infatuated with girls and will go out of his way to impress them, but can be fairly logical and intelligent. He is distinctly known for his quirky and off-the-wall attitude in any situation.
- Zane is the first American character to appear in the James Potter books.
- Zane's infatuation with women is one of his biggest weaknesses, as Nastasia Hendrix was able to exploit him in The Morrigan Web, and he was oblivious to her manipulations (as Natasia bragged to James).
- Zane's character is also based on the real-life son of James Potter author, G. Norman Lippert. Whose name is actually Zane.