LL Cool J is now a series regular on NCIS: Los Angeles.
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18 Times Your Favourite Artists Made Surprise TV Cameos

16. LL Cool J is now a series regular on NCIS: Los Angeles.
LL Cool J is as loved for his acting as he is his music. Since 2009 LL Cool J has been a series regular on police drama NCIS: Los Angeles, where he plays Special Agent Sam Hanna, an ex–Navy SEAL. You could have also caught LL in Hawaii Five-0, 30 Rock, In The House and many more.