Dr. Marion Baker

Dr. Marion Baker  is the main villainess from "Death Wish," episode 8.17 of Castle.

She was played by Denise Crosby, who also played Gretchen Kelly on Lois & Clark.

Marion Baker is an author and professor who is an expert on Middle Eastern literature. She also had an obsession with finding King Solomon's tomb; an obsession that consumed her and ruined her marriage. Marion failed on numerous attempts to find the tomb, but after discovering that Lars Cross--a sonar technician and former pupil of Marion's--found it, she became consumed with jealousy. In the opening scene, the evil Marion tortured Lars at his home before beheading him with a sword, and also later stole an ancient lamp--one of the artifacts from the tomb. At the end of the episode, Marion is arrested for murdering Lars.