Allman has also made guest appearances on shows such as Without a Trace, Boston Public, Malcolm in the Middle, The Practice, Phil of the Future, Close to Home, Cold Case, Saving Grace, Eli Stone, Grey's Anatomy, Mad Men, "Bates Motel", and most recently The Closer. In November 2009, Allman won the role of Tommy Mickens in the third season of True Blood. Allman has also done voice over work, usch as on Breathe Bible. Allman's film credits include Shallow Ground, Little Black Book, Dishdogz and The Immaculate Conception of Little Dizzle.