I remember Hoechlin talking about the neck roll thing during the cast commentary of episode 1.10, where he mentioned that he’d actually suffered from repetitive neck spasms that caused this kind of twitch-roll movement, and that he’d used that muscle memory when he had to act out these scenes. This is actually precisely the same motion that my roommate makes when he gets neck spasms, and I remember wondering if Hoechlin had experienced the same thing before I even watched the commentary.
The thing is, my roommate’s neck twitches are a symptom of his PTSD. I’m sure there’s a hundred perfectly mundane reasons why someone would suffer from repetitive muscle twitches, so I’m not about to imply that there’s any connection there, but shots like these will always make me feel a little sad. It’s funny, because Derek’s supposed to come off as brutal and frightening in this scene, but every time I see that neck roll I just think of someone trying to shake away something horrible that won’t let them go.