Then allow me to tell you what will happen if you don’t kill me. I will disappear, and let you live your life. You will follow the path of light, grow into a fine man. Become a husband. A father. There may be a day where you forget I ever existed. But then I will return, and I will kill everyone you love. Just as you watched your parents die, just as you watched me slice your friend’s throat, I will slaughter your wife and children before your very eyes, and there will be nothing you can do about it!

Alexander Sidding as Ra’s Al Ghul in Gotham

I like the bloody battle look. Good light from a burning house helps.

Hannibal: Rome’s Worst Nightmare

Alexander Siddig in “Poirot: Cards on The Table” (2006)