McKenzie has long, red-brown hair which is tied up in a pony tail. Her skin is light and her eyes are grey. She wears an officer's uniform.
- The player gets a chance to play as her for diamonds.
- McKenzie is left fighting for her life when John Tull shoots her in Chapter 13. However, in Chapter 15, she pulls through and attends Sam and Dave's medal honors.
- She appears in "The Freshman, Book 4" seemingly recovered.