But I don't understand the need...
Spoiler after the jump....
...to kill off Cassie:
Nevertheless, Nicola Walker is brilliant as always. Excellent supporting cast as well, led by Sanjeev Bhaskar. I read that there is going to be a fifth series, I guess without Walker.
The thing about both Walker and Bhaskar is while they are both wonderful actors, they don't really look like television or movie stars. They both have an uncommon authenticity that really adds to the storyline. Walker is an extremely busy working actress. I try not to miss anything she does.