Mr. Monk Gets Cabin Fever - S3-E12
Continuity mistake: After Stottlemeyer says "Well I'm gonna make the most of it" (when he is talking to Monk in the backyard of the cabin and Monk is cleaning) he looks a little to his left and opens a beer can while his mouth is shut. In the next shot he is looking in a different direction and is smiling a toothy grin.
Mr. Monk Gets Stuck in Traffic - S3-E13
Continuity mistake: In the beginning of the episode when Ray Galardi is meeting with Steve Marriot the amount of sun between shots constantly changes between shots. One moment that is very noticeable is a shot of just Ray with the hill in the background and a lot of shade. After showing Steve it goes back to Ray and the sun is now very bright.
Mr. Monk Gets Hypnotized - S7-E8
Continuity mistake: As his hypnosis session begins, Monk's arms change back and forth between takes, from resting on the arms of the chair to folded across his stomach. (00:12:30)
Mr. Monk and the Birds and the Bees - S6-E5
Continuity mistake: In the mausoleum, the bald man asks Monk and Natalie what happened to the cremation urn name cards, and bends to pick one of them up from the floor. There are no cards on the table when he does this, but in the next shot, four cards have appeared on the table out of nowhere. A short time later, they've all disappeared again. (00:18:45 - 00:20:15)
Mr. Monk and the Three Julies - S6-E13
Continuity mistake: The broken side mirror that a distraught Stottlemeyer finds dangling from his damaged car wasn't there when Natalie pulled up to the first crime scene. And it disappears again when Natalie runs back to the car and races off to the second crime scene. (00:03:10 - 00:07:15)
Mr. Monk Gets Stuck in Traffic - S3-E13
Continuity mistake: Whilst Monk is talking with Natalie and Julie about halfway through the episode, Natalie asks Monk whether he helped Julie to find somewhere to go to the bathroom. When Julie says she has managed to hold on Monk says, "isn't she a trooper?" and is pointing his finger at her and then lowers his hand. In the next shot showing Natalie and Julie, he is still pointing at them. (00:21:55)
Mr. Monk Takes a Vacation - S1-E10
Continuity mistake: When Sharona is having dinner at the restaurant and asks her date, "Have you ever been married?", she puts down her drink and lets go of it. When the shot changes she is putting the glass down again and holding on. In the third shot her arms are folded.
Mr. Monk Goes to the Carnival - S1-E5
Plot hole: It makes no sense why the police haven't done the most obvious thing and checked for fingerprints on the murder weapon (the knife). It would not only back up the detective's claim that he did not stab the victim (he never touched the knife) but would have given the police a major clue to finding and prosecuting the murderer.
Mr. Monk and the Red-Headed Stranger - S1-E12
Continuity mistake: Before meeting Willie Nelson on his tour bus, Monk is outside the radio station. When a car comes past the shot shows from inside the car and we see Monk putting his right hand up to his forehead and touching it. In the next shot his hand is now further down his face and is not touching it anymore.
Continuity mistake: This mistake occurs when Monk and Natalie are sitting on the stairs watching the two men wrecking the walls. Close up shots show Natalie sitting with her legs crossed while the long shot shows her legs bent at the knee side by side.
Revealing mistake: When Cassie Drake pushes Joseph Moody down the stairs, it is very obvious that the man falling down the stairs is not Jack Carter. His hair is not even close to the same color.
Mr. Monk and the Captain's Marriage - S4-E12
Revealing mistake: In their efforts to hide Gerald's pet mouse from the hospital staff, Randy and Natalie toss the rodent back and forth and alternate hiding him in their pockets. But every time he's tossed, Devo the Mouse gains weight. In fact, Devo's (stuffed?) stunt-mouse double is at least twice Devo's actual size. (00:27:00)
Mr. Monk and the Secret Santa - S4-E9
Continuity mistake: When Alice is in Stottlemeyer's office and Stottlemeyer can't find Terry's present, Alice says, "But what about..." indicates the bottle of port, and then drops her arms to her sides. In the next shot (when we see Alice from the back), we can tell by the position of her elbows that her hands are not at her sides, but in front of her.
Mr. Monk and the Panic Room - S3-E2
Revealing mistake: In the scene where Darwin and Monk are in the kitchen and Monk calls Dr. Kroger. Darwin pulls the phone out of the wall, but there is no line from the phone to the jack in the wall.
Suggested correction: The phone is a wall type that connects directly at the back. The jack on the wall is wired, and the phone connects when it's mounted. This was a feature of many wall mounted phones as you didn't want exposed wires.
Mr. Monk and the Blackout - S3-E3
Deliberate mistake: As Monk is using the night vision goggles in his house the lights suddenly come back on and continues on still thinking that the intruder cannot see him. The light coming on should have blinded him or at the very least he should have been able to tell there was more light than before even if he hadn't had much experience using the goggles. All the lights in the house come back on and the amount of light would be too noticeable with night vision. This would have been deliberate as Monk continues to think the intruder still doesn't see him in the dark and is part of the joke in the scene.
Mr. Monk Is on the Run (1) - S6-E15
Continuity mistake: During Monk's fingerprinting session, the towelette packets on the counter change positions and quantity several times. (00:14:00)
Mr. Monk Is on the Run (1) - S6-E15
Continuity mistake: The items on the campsite table change positions radically just before Monk leaps up and knocks it over. Nothing is in the same place that it was just one shot previously. (00:22:30)
Mr. Monk Is on the Run (2) - S6-E16
Continuity mistake: When Monk is at the hotel, a teenage girl comes in to clean up the room. While they are conversing, the subject of mysteries comes up and she goes out and gets the newspaper and places it in front of Monk on the table. They then talk a little more about it and Monk gestures with his hands for her to take the newspaper away and she then picks up the newspaper off the table and exits the room with it. During this entire sequence, you can see that Monk does not ever touch the newspaper. Later on, at the car wash, Mr. Monk sees a newly-painted red SUV that used to be silver colored. When recalling that the teenage girl said that they were looking for a silver SUV, it now shows Monk pushing the newspaper across the table towards the teenage girl even though he never touched it in the original scene. (00:15:30)
Mr. Monk Is on the Run (2) - S6-E16
Continuity mistake: When Mr. Monk is attempting to turn off the key to the Governor's car, his right hand is clutching the top middle portion of the front windshield. However, one of the next camera shots shows the windowshield only with no hand at the top. Then a couple of camera shots later, Mr. Monk's right hand is now on the top of the dashboard. At the end of the sequence, his right hand is clutching the top middle portion of the front windshield again. (00:36:30)
Mr. Monk Gets Married - S2-E15
Deliberate mistake: Joshua Skinner hid a fortune in gold by melting it down, mixing it with ink and writing it into 947 journals. Monk's producer concedes that in real life, 947 journals would probably hold "only about $11 worth" of gold-laced ink. But the idea was so amusing that he couldn't resist using it anyway. (00:42:00)