- Participated in an Olympic-training soccer program in his youth, but a torn ACL ended his soccer career; he remains an avid fan of the sport.
- Studied acting at Playhouse West in Los Angeles.
- Made his TV debut in a Pepto-Bismol commercial.
- First big-screen role was in the romantic comedy Little Black Book (2004).
- Is on the board of the Sherry Theater in North Hollywood; co-wrote and starred in the play Devil's Night, which premiered there in 2006.
- Wrote and produced the short film Love After Life (2009), which he and his wife, Jamie Anne Allman, also starred in.
- Has been a series regular on Fox's Prison Break and HBO's True Blood, and made guest appearances on numerous other prime-time series.
- Idanell Allman — Mother
- James Allman — Father
- David Allman — Brother
- Jamie Anne Allman — Wife
- Asher James Allman — Son
- Oliver Charles Allman — Son
- June Joanne Allman — Daughter
Season 10, Episode 2
- Birth Name: Marshall Scott Allman
- Birth Place: Austin, Texas, United States
- Birthday: April 5, 1984, Aries
- Profession: Actor