Thank you for all this. I've quite liked Andrew Scott for some time, but am finally catching up on more of his work and discovering that he is absolutely brilliant (and a phenomenal crier).
The "Delinquent Season" clip you've linked here is for that other talented Irishman, Cillian Murphy.
Psychic_girl posted this before, but it should be included here. From "Blackout" (2012):
https://www.youtube.com/watch?v=KCDz-QWs-p4
Climbing to a high chamber in a well of houses, he threw himself down in his clothes on a neglected bed, and its pillow was wet with wasted tears. -- A Tale of Two Cities