Josephine Langford, who costarred alongside Joey King in the 2017 supernatural thriller Wish Upon (and who is also the younger sister of Katherine Langford from 13 Reasons Why), is reprising her role as Tessa Young. In the sequel, Tessa will struggle with this new information about Hardin's past as it comes to light, as she's "not sure she can endure one more broken promise," as Deadline reported.