Tessa Gray



Theresa "Tessa" Gray is the Warlock daughter of Elizabeth Gray (Adele Starkweather) and a Greater Demon, the adoptive niece of Harriet Moore, the adoptive cousin cousin of Nate Gray, the widow of Will Herondale (ancestor of Jace Lightwood), the wife of Jem Carstairs and the main protagonist of The Infernal Devices book series set in Victorian times. Unlike other children born to Shadowhunters and Demons who usually stillborn, Tessa survived because her mother was an unmarked Shadowhunter and had wore a Clockwork Angel pendant (which contained part of the soul of an angel called Ithuriel) given to her by Axel Mortmain which Tessa later wore. Due to being a warlock, Tessa has a youthful appearance despite being over a hundred years old and unlike other warlocks, she has no warlock mark. In modern times, Tessa along with Brother Zachariah (Jem Carstairs) performed a Shadowhunters ritual on Clary Fray on the wishes of Clary's mother Jocelyn who wanted to protect her.