Warning: contains spoilers for Series 4 of Unforgotten

It’s been two years since the last season of ITV’s hit crime drama Unforgotten, and at long last it’s back on our screens.

After that shocking Series 4 finale, in which we said a heartbreaking goodbye to Dci Cassie Stuart (aka the incredible Nicola Walker), we’ve got plenty of questions about the Series 5 cast.

In this latest series, when a body is found in a boarded-up fireplace, the team gets to work trying to identify who the victim is, and how long they’ve been there. We also discover that the person filling Cassie’s very large detective shoes as Sunny’s new boss-slash-bestie will be the prickly Dci Jessica James, who doesn’t exactly make a great first impression.

Unlike the previous four series, Series 5 of Unforgotten will also be made available as a bingeable box-set on Itvx as...