The Blue Bloods Character You Likely Forgot Tia Carrere Played

In "Blue Bloods" Season 8, Episode 3 ("The Enemy of My Enemy"), Carrere played Chow Lin, a woman charged with multiple counts of sex trafficking and assault (the latter charge stemming from her forced amputation of a defenseless man's hand). During her first scene, Lin has a testy pre-trial conference with District Attorney Erin Reagan (Bridget Moynahan) and the judge assigned to her case. Although Lin goes out of her way to threaten Erin, the judge is later suspiciously found dead, leading Erin to suspect foul play. 

In order to avoid a mistrial, Erin sets out on a mission to prove that Lin's henchman murdered the judge. Erin initially fails to prove such an accusation, but is aided by a bevy of investigators, including Danny Reagan (Donnie Wahlberg), Maria Baez (Marisa Ramirez), and Anthony Abetemarco (Steve Schirripa). During an unfriendly meeting at the prison, Lin puts it together that Danny is Erin's sister and offers yet another ominous and vaguely worded threat. Mere hours later, Erin is nearly run over by a vehicle. As she recovers from the trauma of the near-death experience, she discovers Lin's calling card left on her windshield.

While this experience is undoubtedly difficult for Erin, it ultimately proves that the team is on the right track. Although Erin fails to avoid a mistrial and is removed from the sex-trafficking case, Danny and Anthony manage to turn Lin's second in command against her, revealing evidence that she ordered the murder of the judge. As a result, Erin is instead handed a first-degree-murder case against Lin. We haven't seen Lin in the series since and, given the standard life-without-parole sentence associated with a conviction on such a charge, it seems doubtful that she will ever return.