So good in Black Mirror

Yes agreed she is brilliant

I've seen her in Trainspotting and No Country for Old Men and I know she was on Boardwalk Empire, but her role in Black Mirror was by far my favorite she's ever performed.

Agreed.
I didn't recognize her until I looked her up.
I also remember her in Trainspotting and No Country for Old Men.
Looking forward to more from her.
Her portrayal of a DCI reminded me of Helen Mirren's DCI Jane Tennison in the Prime Suspect series. I'd love to see her play more divorced matter-of-fact inspectors in the future...