Sophie Deveraux was a witch, and later an Elder, of the French Quarter Coven who was also a former antagonist and a former main character on The Originals. In the past, she was a light-hearted girl who enjoyed partying and didn't care much for witchcraft. However, eight months before the start of the series, she watched helplessly as her niece, Monique Deveraux, was sacrificed in the Harvest, a sacrificial ritual that strengthens the connection between the living witches of New Orleans and their ancestors, from whom they draw their magical power. Sophie had not believed in the power of the ritual, likening it to a Biblical story like Noah's Ark and generally regarding the ceremony as an act of barbaric violence.
However, after watching her niece be sacrificed during the proceedings, Sophie latched onto the hope that the Harvest was real and Monique could come back if the ritual was finally completed. With this goal in mind, Sophie finally began devoting herself to the cause, becoming more serious about her magic and plotting to finally capture the lone surviving Harvest witch, Davina Claire, so that she could complete the ritual and bring her niece back from the dead. Sophie made it clear that she would do whatever it took to reach her goal, which made her dangerous to have as an enemy.
In Après Moi, Le Déluge, Sophie became an Elder with the Mikaelsons' help and unknowingly performed the rest of the ritual, which, unbeknownst to anyone else, allowed Céleste Dubois to bring back three powerful dead witches to serve her own agenda. Each of the older witches resurrected by Céleste, including Céleste herself, took the place of the four Harvest witches who were intended to come back following the completion of the ritual, devastating Sophie and sending her on a self-destructive path of excessive alcohol consumption and meaningless sex to cope with having failed her mission.
In Crescent City, after the death of Papa Tunde caused Monique to finally return to life, Sophie was finally reunited with her niece for a brief amount of time. However, once Monique realized that Sophie still lacked faith in the coven and the ancestral magic that they practice, she killed Sophie with a death hex on the Ancestors orders.
Sophie was a member of the Deveraux Family.