'Unforgotten' Season 5 Announces New Lead Sinéad Keenan Nicola Walker's Cassie Stuart has a successor, as Unforgotten announced Sinéad Keenan's arrival as DCI Jessica James. By Ani Bundel for Mystery on 3/14/2022
Will There Be An 'Unforgotten' Season 5? Unforgotten Season 4 may have ended on a series-finale like note, but the show isn't over yet. By Ani Bundel for Mystery on 8/16/2021