Elizabeth Reaser: Humor is the only way to make it through these intense, frightening situations that our characters face. I hung out in an ER when I was researching for this role, and I found that the doctors were really funny. They were always finding the humor within these frightening situations. Humor is real. Within any drama in anyone's life, there's always a way to find humor in it. Without humor no one cares about whatever drama is going on.