Wren's father was a drunk who would often go out without even telling her. He also openly fantasized to her about how he would make her his "little lady" when she was old enough. One day in 1986, he took her out and made her stay in his parked car in front of the Hotel Cortez while he went to go drink at the bar. Soon, The Countess found her and saved her by making her one of her afflicted blood-sucking children. 
Personality and Appearance
Wren has pale skin and blonde hair as all of Elizabeth's children. She also wears a school uniform.
After refusing to talk to police about the Ten Commandments Killer, Wren is settled at the West Los Angeles Health Center. After stealing the keys for the restricted ward because he knows that someone connected to the killer is in there, Detective John Lowe finds Wren in one of the rooms. She explains that she was with the killer every time he committed a crime and even killed a security guard at the church so he wouldn't catch him. She also reveals the story of how she became one of Elizabeth's children. John asks her if she would tell him who the killer is if he gets her out of there and she agrees. However, when coming out of the hospital, Wren says that he has to go to the Cortez and commits suicide by running in front of a truck. 
- To John: "I really like you.... Too bad it has to end."
- Wren is the third character hit by a car in American Horror Story, after Adelaide Langdon in Murder House and Missy Stone in Asylum. Of the three, only Missy survived the accident.