The following is a list of characters of Monk, an American comedy-drama detective mystery television series, created by Andy Breckman and starring Tony Shalhoub as the titular character, Adrian Monk. Except for two changes, the principal cast of the series remained consistent. For the first three seasons Sharona Fleming was Monk's assistant. She left to remarry her ex-husband in the middle of season three. She was replaced by Natalie Teeger, in the episode "Mr. Monk and the Red Herring", and remained Monk's assistant for the remainder of the series. Stanley Kamel, who portrayed Monk's therapist, Dr. Charles Kroger, died of a heart attack in April 2008, during the production hiatus in between seasons six and seven. Hence, starting with season seven, Monk gets a new therapist, Dr. , portraye