Carmack lent his voice to the 2010 animated movie Alpha and Omega, in which he portrays a sport brown wolf named Garth who doesn't know how to howl properly. While Garth is supposed to marry a light brown wolf named Kate (Hayden Panettiere), she doesn't love him. The actor returned to his role as the wolf in a direct-to-DVD release of a Christmas special titled Alpha and Omega 2: A Howl-iday Adventure.