
Continuity mistake: The woman in the wheelchair that Dr. Cox claims is dead is wearing glasses in some shots but not in others.
Jeff Swanson
Continuity mistake: In the apartment there is a cardboard box on a table, with a strip of blue tape on it and a tube of paper sticking out of it. A few shots later another strip of blue tape suddenly appears on the box and the tube of paper has vanished. (00:02:35 - 00:03:15)
Hamster

My Best Friend's Mistake - S1-E3
Continuity mistake: In the apartment, when they decide to watch "Fletch", there is a yellow cushion under J.D.'s right arm, sitting on the sofa. But it disappears between shots. (00:05:50)
Hamster
Continuity mistake: When Elliot and J.D are going up the stairs and J.D asks if they are racing, Elliot has a watch on her left hand, then in the next shot when they are racing, the watch is gone and doesn't reappear.
Continuity mistake: Right at the end, the shot shows Carla walking towards JD with a security guard in the background, the shot cuts to behind JD and suddenly the security guard has moved forward in position dramatically.
Cybermoose
My Best Friend's Mistake - S1-E3
Visible crew/equipment: In the scene where JD and Elliot are treating a patient and JD says "It's the closest thing I had to a date recently" the microphone pops into screen from above at least two times.
Mortug
Continuity mistake: Dr. Cox's stethoscope is hanging down more on his left side, but when he walks around to J.D. it is now hanging evenly around his neck. (00:21:40)
bytemyshineymetalassMy Old Lady - S1-E4
Visible crew/equipment: You can see just the tip of the boom mic on top of the frame for 5 seconds, before Dr. Wen tells Turk that he passed the Cooper's ligament three times. (01:18:30)
bytemyshineymetalassMy Best Friend's Mistake - S1-E3
Audio problem: When Dr. Cox is yelling at Dr. Reed and he's saying, "For the love of Aisha," he's mouthing the word God, but "Aisha" which was dubbed over. (01:02:40)
bytemyshineymetalassContinuity mistake: When JD is in the lift (elevator) with all the people and asks his patient if his gas is bad for the other people, the woman on the right has her arms crossed then in the next shot she has a single hand on her chest.
Cybermoose
My Best Friend's Mistake - S1-E3
Continuity mistake: When Dr.Cox is Talking to Elliot before she leaves the room her name tag flips over and back again. (00:17:20)
bytemyshineymetalassMy Best Friend's Mistake - S1-E3
Visible crew/equipment: When Dr. Kelso sits on the edge of a bed smoking a pipe, he says "right you are, sweetheart" and you can see a boom mic pop into view, above his head. (00:05:35)
Hamster
My Super Ego - S1-E7
Visible crew/equipment: When J.D. goes to apologise to Nick Murdoch, just after he passes the torch to him, Nick says "we need to get the results of this urine sample." As he says this line, the boom can be seen. (00:14:50)

My Best Friend's Mistake - S1-E3
Continuity mistake: Dr. Cox throws his white coat on the table and sits down, when he starts talking to Elliot the coat is now missing from the table. (00:16:40)
bytemyshineymetalassMy Own Personal Jesus - S1-E11
Continuity mistake: When Cox touch JD's hair and asks how much product he uses, JD touches his hair with his hand. But when it cuts his hand is suddenly down.
MortugContinuity mistake: When Dr Cox is watching TV, a guy in green walks past the people in the background, the camera goes to a close up of the doctor with the remote and the same guy walks past again.
Cybermoose
Answer: This is an American comedian called Scott Thompson, more widely known by his stage name of "Carrot Top".
Tailkinker