The makeup crew had to go all the way on making Glenn’s death visually effective to really sell the brutality of Negan.
Jeffrey Dean Morgan could have been as violent and menacing as humanly possible in his performance; it wouldn’t have mattered if Glenn didn’t look like he was really being bludgeoned to death by a baseball bat wrapped in barbed wire.
No wonder filming for the premiere was such a nightmare.
The eye combined with the straggly wig and the blood dripping all over Steven Yeun’s face is proof enough that the other actors probably didn’t need to use too much imagination to pretend that their pal was in bad condition.