Dunn is working as an acting and dialogue coach at the University Of Southern California, Los Angeles since 2000 and has coached performers such as Katherine Towne, Max Martini, Dong-Kun Jang, Michael Rispoli, and Sameera Reddy. She also served as dialogue coach for Ken Watanabe on the horror thriller Cirque du Freak (2008, with Don McManus and Troy Brenna) and more recently on the mystery thriller Shanghai (2009, starring Jeffrey Dean Morgan). She also assisted casting director Mali Finn on several productions and has worked in this capacity with actors such as Russell Crowe, Matthew McConaughey, and Billy Crystal.