“Her and Charlie [Hunnam] were heroes for that. Charlie actually ate the oysters, for which I will always be grateful,” he continued. “And Rebecca did one of the bravest things, because it’s a real thing, her thing. She was like shaking, so her courage to do that and to trust me [was so appreciated].”
Article source: https://www.huffingtonpost.co.uk/entry/monster-season-4-filming-vomit-scene_uk_6abf54dae4b0e84f83801b89