"If you could wipe that blood away, you could basically see into my skull. But I'm fine. I put it on Instagram because I figured it's probably better to have the first-hand report from the guy who's actually going through it. I took the concussion test, had a Cat scan, everything. I was fine. I just got a little boo boo." Actor Ben McKenzie insists he's Ok after accidentally hitting his head on a concrete wall while filming his new Tv series Gotham on Friday (12Sep14). The former The O.C. star posted photos of himself in hospital after the on set mishap.