Chloe Richardson

Chloe Richardson is the main villainess from Castle 's second-ever episode, "Nanny McDead."

She was played by Sarah Drew.

Chloe is a nanny and the best friend of fellow nanny Sara Manning, performing her duties for Diana and Ian Harris; taking care of their daughter, Becca. However, she was also revealed to be having an affair with Ian, who was also sleeping with Sara. Chloe had suspected that Ian was with Sara as well as herself, and once it was confirmed, Chloe went to the basement of the building and confronted Sara. She revealed to Sara that she and Ian were together, but once Sara's back was turned, Chloe took possession of a bottle of bleach and struck Sara's head, killing her instantly. In a panic, Chloe placed Sara's body inside the dryer and went back to Becca.

Sara's murder was the very first case for Richard Castle, and he and Kate Beckett encountered Chloe after interrogating Sara's former boyfriend, Brent Johnson. The villainess falsely claimed that Sara was having an affair with Howard Peterson, as she worked for the Petersons as well as the Harris family. Still fuming over Ian's fling with Sara, however, the crazed Chloe went to the home and attempted to kill Ian with a knife, and was out of the home once Beckett and Castle entered with police. Later on, Chloe was found by Beckett and Castle in the basement, still clutching a knife and causing small cuts to her left leg. She revealed her affair with Ian, and also revealed that she was pregnant as a result. Chloe also expressed her anger at Sara (while claiming that she didn't mean to kill her) for her affair with Ian, and her bitterness at Ian for breaking her heart. After Beckett calmed Chloe down and persuaded her to put down the knife, Chloe was taken into custody and arrested.