Highest, highest praise for Stephen Amell’s performance this week. He swings from rage and despair to broken and hollow, and it’s effortless and effective and harrowing. Why is Oliver Queen consumed with guilt and blame and shame? Because the desires in his heart are dark — or they were, anyway. Has he worked through that darkness to defeat the monster? Does the growth that we’ve seen over the past five years represent his path out of the shadows?
— Entertainment Weekly - 'Arrow’ recap: ‘Kapiushon’