|Portrayed by CCH Pounder|
- "Neither Clave nor Covenant have ever done anything for me. I owe them nothing."
- —Madame Dorothea, City of Bones
Madame Dorothea is a mundane and the adoptive daughter of a Control Witch, who transformed half of the brownstone in Park Slope into a Sanctuary, within which was a Five-Dimensional Door. Her mother adopted her to ensure that there would be someone to look after the sanctuary after she died.
The other half of the brownstone was owned by Jocelyn Fray who purchased the site in order to have quick access to the Door. Jocelyn painted a set of tarot cards for her, with the Mortal Cup hidden inside, and in return, Dorothea would give her Downworld gossip concerning Valentine.
Dorothea opened a psychic's shop called Madame Dorothea, Seeress and Prophetess in the brownstone and used it as a sanctuary for Downworlders, whom the Clave called criminals, to be used at a price. Despite customers being infrequent, she rarely came out of her apartment. Presumably she does have some mundane customers as she has a large collection of fortune telling spell books and other artifacts, but these things are only for show.
Clary sees Magnus Bane, in the form of a cat, coming out of Madame Dorethea's apartment. She is perplexed as she thought that Dorethea didn't have a cat.
Jace and Clary kill the Forsaken in Clary's apartment. Madame Dorothea advises them not to go back upstairs as there are more Forsaken there. She then invites them up to her apartment and serves them cucumber sandwiches and tea, during which she explains that she was adopted by a warlock, who are sterile. She attempts to read Clary's future and is the first to suggest there may be a block in Clary's memories. Clary then uses the Five-Dimensional Door to go to Luke's and Jace follows her.
She was possessed by the demon, Abbadon, sometime after this because he wanted the Mortal Cup. Abbadon then hid himself in the portal; when Clary came for the Mortal Cup, Dorothea opened the door of the portal, only to be consumed and killed by Abbadon. Abbadon then proceeded to attack Jace, Clary, Isabelle and Alec Lightwood, before Simon Lewis saves them by shooting the ceiling, allowing light in.
She is said to look elderly, and she has badger-striped hair tied in a messy bun pinned to the top of her head. She dresses in masses of vibrant oloured silk and wears gold chains on her wrists and throat, and chandelier earings. She always wears faded carpet slippers and occasionally a turban in a neon colour.