8 most disliked Blue Bloods characters, ranked
The police drama has had plenty of controversial characters.
7. Armin Janko
Armin Janko is the father of Eddie Janko (Vanessa Ray), and not a particularly pleasant one at that. He was a wealthy financial advisor who turned out to be an absolute fraud, using a Ponzi scheme to steal millions from unsuspecting people.
Armin was played by two actors, William Sadler and Michael Cullen, and while he's tried to put his criminal life behind him, it's still tough to not view him as someone who put his family at risk. The complicated relationship he has with his daughter is a testament to that.