I come back to this one too: https://www.youtube.com/watch?v=U5qs5tOkGTQ (very mild S2 spoiler). There's so much going on in Anton Lesser's performance.

And then of course later on in the season (much bigger S2 spoilers): https://youtu.be/KWYE1vp4xEw, https://youtu.be/I6SZ--qibXM (I can't find a singular video containing the whole sequence)

And finally: https://youtu.be/mMoAf9xeZNI (also big S2 spoiler)