in NCIS: Los Angeles as a recurring character in the episode "Ambush", in which he assisted the team with information on a dangerous militia group. He also appeared in the episode "The Bank Job". His next appearance was on the episode "Burned", when Hetty called for help as they had a shortage of agents since Callen went off the radar and the server was hacked. He was shot as he, Sam, and Kensi ambushed an alleged terrorist, but it hit his bulletproof vest and he escaped with minor injuries. It was assumed that Renko was still in an undercover assignment outside of the United States. In the season three finale, "Sans Voir", Renko, after being shot in the upper jaw by a sniper, suffered cardiac arrest after surgery, which resulted in his death. Kensi later called Hetty on the telephone and told her what had happened. Seconds later, Hetty, who was seen crying, managed to pull herself together and later told the OSP team what had happened, leaving them, especially Kensi, personally devastated. Abby Sciuto Abby Sciuto (portrayed by Pauley Perrette) is a regular from NCIS who has appeared in two episodes of NCIS: Los Angeles ("Killshot" and "Random on Purpose"). Abby is complimented by Hetty as "the first NCIS employee [she] has ever met with a sense of style". Anthony "Tony" DiNozzo Jr. Tony DiNozzo. (portrayed by Michael Weatherly) is a regular from NCIS who has appeared in one episode of NCIS: Los Angeles ("Blame It on Rio"). Tony is the Sr. Field Agent and second in command of the Major Case Response team in Washington D.C. since before the series premier to Weatherly's departure from the show at the end of NCIS's 13th season. He is the jokester of his team and its leader in special circumstances. In "Blame it on Rio", Tony stops in LA to transport a prisoner back to D.C. only to lose said prisoner before he can even get to LA. The LA team help Tony find and recapture his prisoner before he returns to D.C., getting a "Gibbs headslap" from Hetty who says, "that was from Gibbs." Rose Schwartz Rose Schwartz (portrayed by Kathleen Rose Perkins) is a coroner in Los Angeles. She first appeared in season one, ep. 2 "The Only Easy Day". She has also appeared in the season one episode "Breach", the season two episode "Overwatch", and the season four