[s12e13] Mask Apr 2026

as ADA Gillian Hardwicke: The prosecutor overseeing the case.

is the 13th episode of the 12th season of Law & Order: Special Victims Unit , originally airing on January 12, 2011. The episode is notable for its exploration of sex addiction and a standout guest performance by Academy Award winner Jeremy Irons . Plot Summary

as Detective Olivia Benson: Investigates the familial ties and victim history. Critical Reception & Themes Mask - Law and Order | Fandom [S12E13] Mask

as Dr. Cap Jackson: A psychiatrist struggling with his own past addictions.

as Detective Elliot Stabler: Takes a central role in the undercover operation. as ADA Gillian Hardwicke: The prosecutor overseeing the case

as Debbie Shields: Ann’s partner and one of the victims.

The episode begins when two young boys witnessing a crime call the detectives to investigate the brutal rape of Debbie Shields and the physical assault of her partner, Ann Jackson, by a man wearing a haunting mask. The investigation leads Benson and Stabler to Ann’s estranged father, (Jeremy Irons), a psychiatrist and recovering sex addict who runs a rehabilitation clinic. Plot Summary as Detective Olivia Benson: Investigates the

As the detectives delve into Jackson's "colorful and dissolute" history, they suspect the attacker might be one of his patients. However, Jackson invokes doctor-patient privilege, refusing to share his patient list, which forces Stabler to go as a sex addict to identify the suspect. Key Cast & Guest Stars