
Aaron Ashmore as Duncan Locke (season 2 recurring seasons 1, 3), Rendell's younger brother who used to live in Keyhouse.

Griffin Gluck as Gabe (seasons 1–2 guest season 3), Dodge's male persona who poses as a student at Matheson Academy.Laysla De Oliveira as Dodge (season 1 guest seasons 2–3), the "well lady" of Keyhouse who is revealed to be a demonic entity.



In April 2022, it was announced that the third season would be its last, as originally planned by the show's creators. In December 2020, ahead of the second season premiere on October 22, 2021, the series was renewed for a third season which premiered on August 10, 2022. The series stars Darby Stanchfield, Connor Jessup, Emilia Jones, Jackson Robert Scott, Laysla De Oliveira, Petrice Jones, and Griffin Gluck. It premiered on Netflix on February 7, 2020. Locke & Key is an American fantasy horror drama television series developed by Carlton Cuse, Meredith Averill, and Aron Eli Coleite, based on the comic-book series of the same name by Joe Hill and Gabriel Rodríguez.
