Arrow on the Doorpost - S3-E13
Continuity mistake: In the final scene of the episode, Rick and Hershel are talking while looking out over the prison yard. Near the end of the conversation, Rick squarely faces Hershel and says "I'm hoping you could talk me out of it." The camera then changes to Hershel, and Rick is now immediately facing 90° to his left looking over the yard. When the camera changes back to Rick, he is now looking directly at Hershel.
Continuity mistake: Possible Spoilers! At the very end of the episode Rick walks up to the wall of Alexandria to check out a noise. When the camera shows the walker on The Other Side of the fence it is clear there is nothing else out there. When the camera shows the fence from behind Rick there is the roof of a house visible above the top of the fence. The shadows made by the struts of the fence make it apparent that if there was a house The Other Side of the fence would have been in shadow. (00:48:00 - 00:50:00)
Continuity mistake: When Andrea is attempting to retrieve the pliers on the floor she picks them up between her toes with the head facing up. In the next show the pliers can be seen with the head facing down when she grabs them with her hand.
Continuity mistake: When the Governor first attacks the prison, he is standing on the driver's side but in front of the truck. Next, Michonne aims at the truck and now the black guy who was always with Martinez is shot dead on the driver's side. Then after that, you see he's alive again on the passenger side right before the other truck comes crashing through the gates with all the walkers inside.
Suggested correction: The man you're taking about is Shumpert aka "Bowman." He's was not shot dead. He dove for cover and is still alive. In fact, he's in at least a half dozen more episodes, including in season 4.
Continuity mistake: When the walkers come through the cars, most shots show Carl and Sophia to be under the same car. When Sophia is attacked by the walker, Carl is not there and Sophia is shown on her own in other shots as well. (00:19:25 - 00:20:05)
Suggested correction: They never get under the same car. When we see them first get under the cars, they are both seen getting under cars going in the same direction at the same time (they'd have to go in opposite direction to get under the same car from both sides). Then in the first close up of Sophia, we can see Carl's head in the shadow and then a strip of sunlight indicating 2 separate cars.
The Day Will Come When You Won't Be - S7-E1
Continuity mistake: When Negan makes Rick get the axe from the top of the RV, Rick is fighting the Walkers as he heads for the RV door after picking up the axe. He slams a walker's head into the back of the RV, blood splattering everywhere. Next scene shows Negan and Rick driving back to the group, and the back of the RV is spotless.
Continuity mistake: When Rick, Michonne, and Carl go out on a run, in the first shot, Rick starts to roll the window down so he can shoot a walker. The next shot the window is up, and he rolls it down again. (00:02:00)
Continuity mistake: When they get back to the community after stealing all explosives from the road, the Saviors show up and search for Daryl. When they do, that's when they show a one-second clip of the guy Dwight killed a few episodes back, the guy who said there was nothing to go back to. The guy is then shown to be a walker in the defense yard of the Saviors. So, how is he shutting the van doors of a vehicle in this episode? (00:43:12)
Continuity mistake: When Morgan and Carol leave The Kingdom on horseback to take Carol to her "gone, not gone" house, Morgan is riding on Carol's right. When they are shown arriving, and Morgan dismounts, his horse is slightly in front of Carol's and to her left. Morgan throws down his staff and slings his reins over the picket fence. Then, he returns to help the still recovering Carol from her horse, and we see Morgan's horse is back standing neatly next to Carol's on her right. (00:42:13 - 00:42:52)
Continuity mistake: Arriving at Alexandria, Rick is shown from an interior POV leaning into the back of the car and picking up Judith, who is mostly wrapped in a spotty shawl. As he is shown doing this from an exterior POV, the shawl is barely visible, bunched up behind her legs. (00:41:44)
30 Days Without an Accident - S4-E1
Continuity mistake: After Michonne gives Rick the shaver, he has his gloves in his right hand and the shaver in the left. As he walks up to the prison, he throws the shaver away on the ground. He continues up to where Carl is brushing the horse, still with his gloves in his right hand and left hand empty. He remains like this whilst talking to Carl, but as he pats the horse, then walks away, he has the shaver in his right hand and the gloves in his back right pocket. (00:11:44 - 00:12:14)
Continuity mistake: When Carl and Michonne are eating breakfast, and she is rolling up the sleeves to her new white shirt, it is untied. When the scene cuts to her sitting down the shirt is tied at the back. (00:03:20)
Continuity mistake: The message in chalk Carl writes on the door changes from what we see him do. For example, he writes something on the middle part of the door (which doesn't look like the word "shoe") and then doesn't write on the inset part of the door below that. When we see the message, the inset part now has some writing on it.
Continuity mistake: The Wolf is shown to have filthy teeth but when Carol confronts Morgon in The Cell, his teeth are clean.
Continuity mistake: The hole in the wall Carol makes with the knife grows, depending on what angle we see it from.
Continuity mistake: Daryl and Carol are walking to an abandoned home. Carol walks by a bush with bright sunlight coming from the left of the shot. The angle changes and it's overcast with no sun. Then we see Daryl again and it's once again sunny.
Pretty Much Dead Already - S2-E7
Continuity mistake: After talking with Hershel, Rick heads out to the barn and meets up with Shane at a tractor. Shane asks him which way is it going to go as Rick is looking to his left down at the tractor. When the shot cuts to The Other Side as Rick responds, he's suddenly looking straight ahead at the barn. (00:15:32)
Pretty Much Dead Already - S2-E7
Continuity mistake: Rick is talking with Hershel in his kitchen and asks him to please not send Them out into the world again. Hershel is looking down at his sink from the side angle. When it cuts to a view from behind, he's suddenly looking up to the left out of the window, only to lower his head back down towards the sink again. (00:13:57)
Bloodletting - S2-E2
Continuity mistake: When T-Dog is telling Dale that all he found was ibuprofen and cigarettes, he is holding his hand up and they are both looking at each other. In the next shot, suddenly his arm is down and they are both looking forward. (00:22:44)