According to EW.com's Michael Ausiello, Robert Wisdom (Uriel) has been cast on USA Network Burn Notice for a minimum of six episodes.
Wisdom will play Vaughn, "a veteran spy handler who works for the group that burned Michael. Possessing an impressive combination of high-end book smarts and real-world experience, he’s smart, world-weary, and ruthless."
Source: EW.com.