Omid Abtahi played Sumner on Terminator: The Sarah Connor Chronicles for one episode, before the role was taken over by Andre Royo.
Abtahi has made recurring appearances in several high profiled television series, most notably as Tariq Nassiri in "Over There" and Salim in "Sleeper Cell". More recently, he has appeared in "Ghost Whisperer" and "My Own Worst Enemy".