Miguel Ferrer played Assistant Director Owen Granger on NCIS: Los Angeles for seven seasons. Before joining the CBS drama, he was widely recognized for his roles in Crossing Jordan and the classic film RoboCop. After being diagnosed with throat cancer in 2012, Ferrer continued appearing on the show, with the condition written into the storyline. He died in January 2017 at the age of 61. His cousin George Clooney later honored his memory publicly.
Ravil Isyanov portrayed crime boss Anatoli Kirkin on NCIS: Los Angeles from 2013 until his death. The Russian-born actor died in September 2021 at age 59 after a battle with cancer.