Jonathan Kowalsky has been chosen for the part of “Todd Jeffries” in True Blood Season 5. The part is listed in episodes 4 and 5 and the casting call for this part says:
[TODD JEFFRIES] Seen in flashback to Iraq in 2003, this U.S. Marine joins his squad (which includes Patrick and Terry) on a trip to a small village, where their plans to party and wreak a little havoc go tragically awry. 5 lines, 1 scene (26).
Jonathan recurs on Justified. Other credits include Bones, NCIS:LA, 24, CSI:NY, Dollhouse and Desparate Housewives.
source: spoilertv.com