<Li> Henry Ian Cusick as Erik Weber </Li> <P> Henry Ian Cusick played a graphic artist named Erik Weber in the first two episodes . Joan Cusack played the mother of two missing girls in the first episode . Jennifer Love Hewitt played a rape victim afraid to leave her house in the episode "Behave". Baer told TVGuide.com, "One of the reasons we wanted to do this episode is because it addresses Mariska Hargitay's passion for rape kits, which can help gather evidence to convict the rapists . But for some reason these kits have been sitting around unopened in cities all over the country ." Skeet Ulrich guest - starred in the same episode as his Law & Order: LA character, Detective Rex Winters . Gloria Reuben guest starred as US Attorney Christine Danielson in the fourth episode "Merchandise", in which the death of a girl who was struck by a car reveals a child trafficking and slavery ring . Baer said of her appearance, "We're bringing back characters we love this season ." </P> <P> David Krumholtz guest starred in the fifth episode "Wet" with actress Rosemary Harris . Krumholtz played an expert on toxic mushrooms who is involved in the same murder investigation that involved Harris' character . Paula Patton, who was originally cast in the role of ADA, also makes a guest appearance as ADA Mikka Von . In the episode, her character is fired because she sent a defense attorney on vacation in order to give the detectives more time in finding who actually committed the murder . In the sixth episode "Branded", Michael Gladis and Kevin Alejandro played two of a trio of rape victims . "They have been branded and sodomized by someone", revealed Baer, who said the show posed the questions, "is there a connection between these men, and what nut case is on the loose?" David Alan Grier played defense attorney Jeremy Swift . Jason Wiles also joined Gladis, Alejandro, and Grier in the episode . Wiles played Alexander Gammon, who becomes a rapist's target . </P> <P> Maria Bello appeared in the season's seventh episode "Trophy" as Vivian Arliss . After identifying an ex-convict as the prime suspect for the rape and murder of a girl, Benson discovers that Arliss' mother was raped by the same man . Arliss leaves her son Calvin (Charlie Tahan) in Benson's custody to find the boy's father . She later appeared in tenth episode "Rescue". Marcia Gay Harden returned in the season's eighth episode "Penetration" as FBI Agent Dana Lewis . Agent Lewis is raped while undercover, and her rapist has a connection to one of her previous undercover operations in "Raw". </P>

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