- After college, worked as a stage actor in New York; taught at a New York acting studio in the early 1990s.
- Was an executive producer for the last two seasons of The Shield, and wrote for the series throughout its 2002-2008 run; credits include the 2005 and 2007 episodes in which his wife (and Sons of Anarchy costar), Katey Sagal, guest starred.
- Spent time with members of an Oakland motorcycle club before developing Sons of Anarchy.
- A motorcycle rider himself, has ridden across the U.S.
- Has an occasional Sons of Anarchy role as imprisoned club member "Big Otto" Delaney; played an Armenian hit man on three episodes of The Shield.