NCIS: Los Angeles has upgraded Eric Christian Olsen to a series regular for the show's second season, CBS announced Tuesday.
Last season, Olsen recurred as Marty Deeks, a seasoned LAPD undercover detective who was recruited to the NCIS team. He'll appear in the two-hour season premiere.
Check out photos of the NCIS: Los Angeles cast
"We are thrilled to have Eric join the cast," executive producer Shane Brennan
said. "He has already proved himself to be a great asset and invaluable member of the team, and Eric's fans will be delighted to see what we have in store for him."Olsen has previously appeared on Tru Calling
, Brothers & Sisters
, and Community
. NCIS: Los Angeles
returns Tuesday, Sept. 21 at 9/8c.