Mischa Barton’s all set to “hook it up” on an upcoming episode of Law & Order: Special Victims Unit.
The former “It Girl” — who appeared in the shortlived CW drama The Beautiful Life earlier this season — will guest star as a prostitute named Gladys on an episode airing March 3, TV Guide said Monday. Mischa’s character is hiding a secret that involves Mariska Hargitay’s Det. Olivia Benson.