
...Bernadette becomes a double agent
in the ENEMY camp.
The Big Bang Theory Season 4, Episode 22

So, you've met the ENEMY,
Game of Thrones Season 6, Episode 9

The friend of my ENEMY's
girlfriend is my ENEMY.
The Big Bang Theory Season 7, Episode 2

The first ENEMY, and the last.
Game of Thrones Season 7, Episode 6

You are my ENEMY.
Game of Thrones Season 3, Episode 1