The character Yvonne has a much diffrent personality than Ace. Most of the time the girl stays very calm snd doesn´t talk much. In Yvonnes point of view, there is not much reason to be optimistic. The problem is, despite this calmness she suddenly can have a very strong outbreak with an extreme reaction. But even during this outbreak and in contrary to Ace, Yvonne remains inward looking So the actress had to be able to move from calmness to this extreme reaction and back easily.
For Yvonne we found after some trials a girl who has experience from theatre. She has the right skills, but when I first saw her I thought she looked too strong. However after the make up artist gave her a new look, it was clear we found the right actress.