Meet the suspects in Season 2 of Unforgotten, as seen on MASTERPIECE Mystery! on PBS. Sign up to get the latest news on your favorite dramas and mysteries, as well as exclusive content ...

Walker left the series in season 4, and was replaced by Showtrial's Sinéad Keenan, who joined the department as DCI Jessica 'Jessie' James. Sinéad Keenan as Jessie in Unforgotten season 6.