Chace Crawford. Give this man his flowers.
This man was FLAWLESS for 5 entire seasons. He portrayed the perfectly petulant, childish, whiny man baby that is The Deep in every episode. When he needed to show some acting range, he delivered. When he needed to be a mindless idiot, there he was. When you needed some absurd line delivered in a "serious" tone, there's your boy.
I legitimately laughed out loud (in a good way) during the finale when Starlight tells him, "for once in your life, take some fucking responsibility" and Deep takes just a moment, face twisting in thought and then rage before screaming "NO!" and coming at her.
Crawford was 10/10 as The Deep, no notes. Say what you will about the show and the plot and all that (I certainly have), but I feel like his performance goes underappreciated amidst all the other stellar actors on set.