Troy Kroger is Charles Kroger's teenage son. Troy was shown to like skating and listening to loud music with his friends Pez and as shown in Mr.Monk and the Buried Treasure. Troy also had a dramatic change of look from his first appearance in Mr. Monk Gets a New Shrink to his last appearance in Mr. Monk and the Buried Treasure. In New Shrink Troy is shown to have a somewhat emo look with long black hair and lots of bracelets, while in Buried Treasure he is shown to have short natural hair and less emo looking clothes.
Troy, at least for a while, denied being Charles Kroger's son even though his father had a paternity test done three times.