Continuity mistake: Just before Sherlock and Detective Bell enter the dead professor's office, both are putting on gloves. Sherlock puts on the left first and has partially put on the right. As they enter the office, Sherlock still hasn't put the right glove on at all - he's just starting to do so. (00:05:30)
Continuity mistake: Watson came to Mycroft's place, spent the night and was awoken by Sherlock (this episode) the next day. Somehow she had a nightie and a brand new outfit. (00:00:05)
It Serves You Right to Suffer - S5-E9
Continuity mistake: When Joan accuses Agent Whitlock of gathering intel to Rip Off/ambush/rob the gangs, a woman enters the hall behind her. Moments later, The Woman disappears having never walked past Joan or Agent Whitlock. She didn't open any of the doors in the hallway either since she was walking straight down the hallway.
Render, and Then Seize Her - S5-E3
Continuity mistake: While talking Paige picks up a small white Chinese food takeout container to close it and puts it back down on the desk. She picks up a the larger container that has the red pictures and the word enjoy on it and starts to close it. In the closeup she has the small white container back in her hand.
Continuity mistake: When Sherlock first accuses Irene of working for Moriarty, he pins her to a bookcase. When she shoves him away and breaks free, her hair ends up arranged with some strands in front of her. During the following minute, those strands repeatedly switch back and forth from behind her shoulders to in front of them. (00:38:25)
Continuity mistake: While Joan and Sherlock are chatting, Joan is trying to make peanut butter and jelly sandwiches, but the shots alternate between the two and Joan repeats her movements, wipes the peanut butter over and over on the bread, and changes her mind with the jelly bread.
Continuity mistake: In the beginning, Joan and Sherlock are chatting in the living room. Joan has her hands in her lap, then she is resting her right arm on the arm of the chair.
The Rat Race - S1-E4
Continuity mistake: In the final scene Watson finishes tying her shoelaces. Next shot she is still tying them. (00:41:40)
The Rat Race - S1-E4
Continuity mistake: Watson has just been ambushed with a date by her friend at the very beginning. She is reaching for her coffee cup. In the immediate next shot, her hand is down by her side. (00:03:15)
An Unnatural Arrangement - S2-E6
Continuity mistake: At the start, when The Woman first fires at the door the holes are quite dark and splintered. Then when she moves to pick up the phone the holes look far neater, like they've been drilled.
Continuity mistake: In the prison, Captain Gregson takes five shoes out of a suitcase, but when it comes time to leave, Gregson doesn't put the shoes back in the suitcase because they are already there, and he could not have done it without us seeing it.
Continuity mistake: When Joan meets with her therapist, the nook behind Joan is brightly lit. The nook goes back and forth from brightly lit to very dark, sometimes in the space of a three-second cut to the therapist.
Answer: I'm the same person who asked this question. I discovered it was Molly Price whom I recognized from Third Watch.
Cathrine R
It should be noted Donna was Jim Fowkes‘ secretary. Donna killed Peter.
Bishop73