Continuity mistake: The last time Donovan hits Diana's craft with a laser, he hits it on the right side. But inside the craft it's the left hand side that explodes. (00:04:40)
Continuity mistake: When Diana is being chased by Donovan after crashing her craft, she has her normal human eyes. But during Donovan's strangulation attempt she has lizard eyes. As we saw in the original series, a Visitor's human eyes had to be removed by hand before the lizard eyes could be seen underneath. (00:05:30)
Dreadnaught - S2-E2
Continuity mistake: When Elizabeth's arm is waving about above the cocoon, it is covered with scaly skin. But when she is seen standing up pulling the scaly skin off her face, both her arms have no scaly skin, and there wasn't enough time for her to remove it. (00:06:00)
Dreadnaught - S2-E2
Continuity mistake: After a talk with Diana on the mothership, Lydia is left alone and then she takes a message out of her uniform. She wears a ring on her left middle finger and her nails are painted red. In the following shot we see Lydia's hands put the message into a box. The hands do not have their nails painted and wear no ring whatsoever. (00:31:45)
Continuity mistake: When Ham Tyler is fixing the van in the garage, there is sunlight shining on him when the camera is facing out onto the street, but there is only normal daylight when the camera is facing inside the garage. (00:24:25)
Continuity mistake: When Diana is about to eat the white mouse, Donovan puts the tray of mice down on the bed, then in the following shot he puts it down again. (00:28:10)
Continuity mistake: When Mike is about to kiss Diana, he puts his thumb on her chin. Then in the next shot his thumb is away from her chin. (00:28:20)
Continuity mistake: When Mike pulls the necklace off the fake Julie, Julie's head is lying at a slightly different angle than when she changes into Lydia. (00:39:20)
The Sanction - S2-E5
Continuity mistake: When Sean throws the car keys away after punching Ham, Ham's head is above the steering wheel. In the next side-on shot, his head is much lower. (00:28:20)
Continuity mistake: When Ham and Mike come out of the main door of the building, Mike shoots a guard standing on the roof. The guard falls off, but when the shot switches back to Mike the guard isn't seen falling to the ground. (00:43:20)
Continuity mistake: The Visitor craft that Mike and Ham capture is not the same type that is seen later entering the hangar. The first one is a small shuttle, the second is a transport, distinguishable by the windows on the side. (00:20:10)
Continuity mistake: When Mike radios Elias he identifies himself as 'wilderness' calling 'Shiloh'. When Elias acknowledges, he also identifies himself as 'wilderness' instead of 'Shiloh'. (00:33:20)
Continuity mistake: When Kyle and Sarah arrive to help Mike and Ham, they drive through a group of Visitor guards, who all dive onto the embankment out of the way. But two seconds later, two of the guards are back on the dirt track. (00:35:40)
Continuity mistake: When Elizabeth is pricked by the rose, there is a closeup of her bleeding finger. Before and after this shot Kyle is holding her hand, but not in the closeup. (00:03:25)
Continuity mistake: When Chris and Ham are sitting down talking about The Conversion process, Ham gets up and walks over to the map. When he turns around Chris is suddenly standing in front of him, whereas he should still be sitting down. (00:37:35)
Continuity mistake: When Charles reads the message about Nathan Bates coming out of the coma, there are two things to look for during the closeup of the note. The logo on the top is replaced by writing and he grips the note in a different position from before. The writing changes yet again when the note is seen from behind. (00:13:35)
Continuity mistake: When Willie dies, Howie says 'he's gone' but Willie's head position changes between shots. (00:24:55)
Continuity mistake: Mike Donovan (riding a horse) is chased by a Visitor shuttle. It is obvious that there were recycled some shots from "The Final Battle" (Ep. 1). In "The Champion", Donovan does not have a laser pistol. However, there are some shots in which he has that pistol: obviously, those shots are taken from TFB.
Continuity mistake: When Philip is first seen with the metal thing on his lens a buzzing sound is heard. Afterwards, no buzzing sound is heard. (00:17:10)
Continuity mistake: When Kyle is with Donovan in the warehouse shooting at Philip, you always hear a bang coming out of the machine gun but sometimes a fire blast is not seen.