NCIS: Los Angeles already stars a series of familiar faces: Chris O'Donnell, LL Cool J and Linda Hunt will all play key roles on the show.

But TV Guide reports that fans of the original series will spot a very familiar face when the spin-off debuts this fall: Rocky Carroll, who appears on NCIS as director Leon Vance, will take on the same character in NCIS: Los Angeles.

The actor was promoted to series regular status on NCIS this past season. As for his new gig, Carroll said:

"I'll be keeping my normal routine on the mother ship, and I'll be doing at least six of the first 13 episodes of NCIS: Los Angeles."

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.