Diana Lombard is a student at Torrington Academy and the deuteragonist of the animated series Martin Mystery. Diana is a serious, rational overthinker and obsessive straight-A 16 year old student with nothing in common with her stepbrother. As an agent at The Center, she strives to bring more seriousness into Martin's life, and is Martin's female counterpart during investigations. Her best friend is Jenni Anderson. She is also, but normally seen as the clean-freak, goody-goody, overachiever, busy body, and brainiac of the trio. Diana has apricot skin, shoulder length thick light brown hair, green eyes, and light coral pink lips. Her usual clothing consists of a long sleeved pink blouse with dark pink sleeves (lavender with purple sleeves in the promo art), light blue knee-length jeans and lavender and white sneakers with no socks in them. She also sports a small purple shoulder bag with a cat design on it, and a pair of purple hair clips, one with a pink flower on it and the other a star.