human and was studying to become a priest. He is portrayed by David Castro in the television series. Robert Lightwood Robert Lightwood is one of the heads of the New York Institute, later the Inquisitor, ex-husband of Maryse, father of Alec, Isabelle, and Max, as well as the adoptive father of Jace Herondale. He was a part of Valentine's Circle until the Uprising, after which he and his family were banished to New York. His parabatai was Michael Wayland, but they drifted apart because of Robert's contempt for the latter's love for him, later breaking up completely after Robert's banishment to the point that Robert did not know that Michael had been murdered with his identity being taken up by Valentine. Robert's marriage with Maryse has been strained since their banishment and Robert once even considered to leave the family for Annamarie Highsmith if not for Max's birth; this fact is played up by Isabelle after Max's death, who accuses her father of being happy with Max's death now that his "burden" is released. Robert also seems to be the one in his family least pleased when Alec comes out of the closet, even questioning him about what drove him to become gay. At the end of The Mortal Instruments series, Robert has ended his marriage with Maryse, though the two say that they will continue to love each other. He also tells Alec that his disapproval of the latter's sexuality was because of his own guilt and shame from his unfair treatment of Michael Wayland. In the television series, he's portrayed by Paulino Nunes. Tessa Gray/Herondale/Carstairs Theresa "Tessa" Gray is a half-demon half-Shadowhunter warlock who is descended from the Starkweather family and the ancestor of the Herondale family. She is the main protagonist of The Infernal Devices series, a distant prequel series of The Mortal Instruments series set during the Victorian era London. Though she does not appear until the last book, Tessa figures prominently in the series' backstory, not only by her descendants (one of whom is Jace Herondale) but also as the one who performed the Shadowhunter ritual on Clary when she was younger; Clary even notes several times before their formal meeting that Tessa is familiar to her in some way. She was married to Will Herondale until his mortal death 60 years post-marriage, after which Tessa became a recluse living in the Spiral Labyrinth. When