That was exactly the look that Graham had. He was absolutely hating every single moment of this. But he was doing his best to keep on keeping on. It wasn't easy.
"Hey!" he yelped when she shoved him out of the way of the zombie's bite. Turning with a frown, he realized why she had given him that push, "Oh, God." He blinked, still watching her, and letting her grab at him to pull him with her to a safer spot on the roof.
"Oh, God," he repeated with more inflection when he saw Teagan take out her gun and aim. Bringing both hands up to cover his ears, he gave a very worried look toward the group of Lurkers that were closing in on them.
And he may or may not have managed to slip behind Teagan, as if to hide from everything else currently on the rooftop with them.