Character mistake: Sherlock states that Sean Figueroa has "such blue eyes" even though he has brown eyes. (00:39:05)
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.
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.
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