I really liked Idris Elba in Luther.

I also am partial to Mariska Hargitay in Law and Order: Special Victims Unit.

I also really enjoyed Matthew McConaughey and Woody Harrelson in True Deceive. And for that matter I also really liked Colin Farrel's portrayal in True Detective Season 2. He was a troutty cop but I liked his acting in the role.

David Tennant is good in Broadchurch but also that soundtrack for broadchurch is amazing. My favorite composer, Olafur Arnalds, does it and it brings the show on a new level.

I liked William Petersen in CSI too.

Oh man I like a lot of detective shows haha I haven't seen Midsomer Murders though. I'll look into it.