Dr. Salazar Kagan

Dr. Salazar Kagan is a professional oral surgeon and a dentist. In the books, he is referred to as Dr. Kagan. He is a rather new, albeit minor, antagonist in the series, making his debut in The Ugly Truth, and became Greg's new dentist when his father abruptly changed dentists for Greg. Dr. Kagan, while professional, is not a very considerate dentist and seems to use fear to scare his patients into taking better care of their teeth, as he unnerves his patients by decorating his waiting room with horrific posters of oral disease. He is also shown to not be able to manage his anger. In the middle of his first appointment with Greg, Greg accidentally bites down on his finger during some oral x-rays. As a result of his anger from his bit finger, he prescribed headgear to Greg, who probably didn't need it. The headgear was later stolen by Manny Heffley.

Trivia

 * He almost looks like Chirag's dad, except he doesn't have a mustache.
 * In the Book, it was shown that Dr. Kagan doesn't have coloring books.
 * It is unknown what happen to Dr. Kagan during Cabin Fever and The Third Wheel, it maybe because that he was busy on other kids.