Del Vecho explained how the film's animation team was organized: "On this movie we do have character leads, supervising animators on specific characters. The animators themselves may work on multiple characters but it's always under one lead. I think it was different on Tangled, for example, but we chose to do it this way as we wanted one person to fully understand and develop their own character and then be able to impart that to the crew. Hyrum Osmond, the animator on Olaf, is quiet but he has a funny, wacky personality so we knew he'd bring a lot of comedy to it; Anna's animator, Becky Bresee, it's her first time leading a character and we wanted her to lead Anna." Acting coach Warner Loughlin was brought in to help the film's animators understand the characters they were creating. In order to get the general feeling of each scene, some animators did their own acting. "I actually film myself acting the scene out, which I find very helpful," said animation supervisor Rebecca Wilson Bresee. This helped her discover elements that made the scene feel real and believable. Elsa's supervising animator was Wayne Unten, who asked for that role because he was fascinated by the complexity of the character. Unten carefully developed Elsa's facial expressions in order to bring out her fear as contrasted against Anna's fearlessness. He also studied video from Menzel's recording sessions and animated Elsa's breathing to match Menzel's breathing.