Continuity mistake: Monk eats a sandwich with a slice of one of the square tomatoes on it, however, in "Mr. Monk Goes to the Asylum," tomatoes are one of his allergies.
Mr. Monk Goes to the Carnival - S1-E5
Continuity mistake: When Monk is in the review board hearing, in long shots, the wastebasket by the board members' table is empty. When one of the reviewers throws away a paper that misses the basket and lands right next to it, there are several papers already in it. In the next long shot and for the rest of the scene, the basket is empty again and the missed paper is at least two feet away. (00:06:15 - 00:07:40)
Continuity mistake: The location of Trudy's grave changes throughout the series. In "Mr. Monk and the Candidate," it's in a spot in the graveyard by a paved intersection. In "Mr. Monk and the Red-Headed Stranger," it's in the midst of a copse of trees. In "Mr. Monk and the Three Pies," it's just off the cemetery's main drive.
Mr. Monk Goes to the Carnival - S1-E5
Continuity mistake: When Kitty runs up to Gitomer, she is not wearing gloves. Later, when Monk gives his summation, careful viewing will show Kitty wearing a glove that's used to hold the knife.
Mr. Monk and the Very, Very Old Man - S2-E5
Continuity mistake: In the scene where Capt Stottlemeyer is vacuuming Monk's floor, you see the living room has wall-to-wall carpet. But just minutes later when they show the floor again, it is just a throw rug over hardwood floors. The room no longer has wall-to-wall carpet.
Suggested correction: It's never wall-to-wall carpeting. It's always a rug, and the Captain even calls it a rug. In the shot of the vacuum and the Captain's feet, you can see the hardwood floor behind him.
Earlier there was no rug at all. They were fighting about the coffee table and you could hear the scrapping noise of the coffee table on the bare floor.
Mr. Monk and the Rapper - S6-E2
Continuity mistake: After Monk tries to get out of the contract with Murderuss, he walks to Stottlemeyer with jewel necklaces around his neck. In the next shot (after Stottlemeyer asks "How did that happen?"), the necklaces have disappeared. (The golden teeth stay, though).
Happy Birthday, Mr. Monk - S8-E9
Continuity mistake: When Monk pulls all his drapes shut, there's a wide gap in the right hand set that's letting at least five inches of bright sunlight through. No one has touched them again, but when Natalie goes to open the drapes a few moments later, the gap has completely closed itself. (00:16:00)
Mr. Monk Goes to the Bank - S6-E12
Continuity mistake: When Monk is trying to convince the old woman to use the other pen so the ink in them will be even, in the shots from behind him, the pen's chain is hanging down below the counter. In the shots from in front of him, the chain is pulled taught. (00:23:45 - 00:24:15)
Mr. Monk and the Red Herring - S3-E10
Continuity mistake: When the coffin Monk is in is opened, he has candle wax on his hands. In the next shot, there is no candle wax.
Mr. Monk and the Buried Treasure - S6-E6
Continuity mistake: In the captain's office, Randy is holding his cup with both hands and he states that he has a Motorola phone in his pocket. He begins to turn to his left to expose his suit pocket jacket. In the very next shot, which is a wide angle of everyone, he is beginning his turn again so Natalie can retrieve the cell phone.
Mr. Monk and the Buried Treasure - S6-E6
Continuity mistake: At the end of the episode, when Dr. Kramer and Monk are talking, Dr. Kramer is hunched over listening to Monk. In the very next camera shot, with the camera pointing at Dr. Kramer, he is sitting straight up and just finishes crossing his arms. A couple of seconds later, it switches back to Monk and you can see Dr. Kramer hunched over again and arms uncrossed.
Mr. Monk and the Very, Very Old Man - S2-E5
Continuity mistake: When Stottlemeyer moves the snake, the pinecone falls on the ground. The next scene, where Monk is on the table and talks to Stottlemeyer, the pinecone is back on the shelf. (00:25:26 - 00:26:36)
Continuity mistake: When Natalie arrives at the marina she is wearing a long trench coat but after she discovers the dead body in the water she is wearing a short one.
Mr. Monk Is At Your Service - S5-E12
Continuity mistake: When Natalie drops Monk off at the mansion, there is a bush in the background. Suddenly a gardener appears.
Mr. Monk and the Panic Room - S3-E2
Continuity mistake: Stottlemeyer has taken things like a banana and a Monkey Joe out of a black leather bag and places them on a table while interrogating Darwin the chimp. One shot while he's acting like a monkey shows the table's bare and the bag's closed.
Mr. Monk and the Secret Santa - S4-E9
Continuity mistake: In the beginning scene it shows someone injecting a liquid, with ease, into what appears to be a corked wine bottle. Then around the 13-min mark you see the Captain re-gift the bottle and when the person opens it, it's a pull cork with a hard top, something a needle would not easily go through. (00:00:10 - 00:13:23)
Mr. Monk is the Best Man - S8-E13
Continuity mistake: When Stephanie leaves Stottlemeyer's office (after he tells her to have TK call him), we see her walk out the door. When the shot changes to Monk, you can see Stephanie in the reflection on the TV walking out of the office again.
Continuity mistake: When Monk comes home (after being at Steve's house) and starts to pet the dog, the dog sits down. But in one shot she's suddenly standing and wagging her tail, but then back to sitting in the next shot.
Mr. Monk and His Biggest Fan - S6-E1
Continuity mistake: When Randy is playing "Timber", we see a close up shot of the boy taking out a middle piece and there's no other middle pieces removed. But in the next shot, you can see 2 middle pieces gone.
Mr. Monk Goes to the Hospital - S5-E16
Continuity mistake: When the police are told room 623 is the geriatric ward, Stottlemeyer is holding the seal with the glove up in his right hand when Randy leaves. But in the next shot, his hand is down and you don't see the glove.