Law &amp; Order: Special Victims Unit (season 18)Law &amp; Order: Special Victims Unit (season 18) Law & Order: Special Victims Unit (season 18) The eighteenth season of "" debuted on Wednesday, September 21, 2016, on NBC and finished on Wednesday, May 24, 2017, with a two-hour season finale. Rick Eid, who previously worked on "Law & Order" and "", became the executive producer and showrunner, following Warren Leight's departure from the series at the conclusion of the seventeenth season. Eid himself departed the series at the end of the eighteenth season and was replaced by Michael S. Chernuchin. Production. "Law & Order: Special Victims Unit" was renewed for an eighteenth season on February 1, 2016, by NBC. It  was announced in March 2015 that season seventeen would be showrunner/executive producer Warren Leight's last season on the show; he signed a three-year deal with Sony Pictures Television, his contract allowing him to work on "SVU" for one final season. On March 10, 2016, it was announced that Rick Eid would replace Leight as showrunner on this season. The 400th episode of the series aired this season. "Motherly Love," directed by Mariska Hargitay, was filmed and billed as the 400th show. However, due to the shuffling of episodes during the season, the episode actually aired as the  399th episode. The 400th episode that was aired was the eleventh episode of the season, "Great Expectations," which aired on NBC on February 15, 2017 (after being moved from its initial air date of November 9, 2016, and a second air date of January 4, 2017). At the end of production of the season, during upfronts "SVU" was renewed for a nineteenth season. Following the renewal announcement, it was revealed that show runner/executive producer Rick Eid had departed the show. He took over "Chicago P.D." as showrunner/EP starting with its fifth season, replacing "C.P.D." co-creator/EP Matt  Olmstead. Michael Chernuchin, former showrunner and executive producer for Dick Wolf's "Chicago Justice" series, as well as a former executive producer and writer for many past incarnations of the "Law & Order" franchise, was selected as "SVU"s new showrunner. Storylines and cast changes. It was announced at the end of the seventeenth season that recurring star Andy Karl (who portrayed Sergeant Mike Dodds) would be departing the cast due to his Broadway work. He was killed off on the season finale by corrupt corrections officer Gary Munson. It was announced on July 22, 2016, that "SVU" would do a ripped  from the headlines episode based on Netflix documentary "Making a Murderer". Henry Thomas appeared alongside Kelli Williams in the episode about a convicted rapist who is exonerated after DNA is freshly tested. Ice-T's character, Fin Tutuola, originally arrested Thomas' character 16 years earlier and then begins investigating him again when he is linked to a deadly crime. Williams played Melanie, a rape victim who initially identified Thomas' character. On August 20, 2016, it was announced that the season premiere would pit ADA Rafael Barba (Raúl Esparza) against Lt. Olivia Benson (Mariska Hargitay) on opposing sides of the verdict . The episode "Rape Interrupted" (which guest stars Anthony Edwards), was ripped from the headlines based on the Brock Turner sexual assault case, where Turner sexually assaulted an unconscious girl and was later convicted of three felony sexual assault charges. Turner was leniently punished as he only served three months of his six-month sentence, though he originally faced 14 years in prison based on charges. Executive producer Julie Martin told "The Huffington Post", "It is a phenomenon. Unfortunately, there have been several cases like that over the spring and the summer." Hargitay pondered if a similar case were to happen  on the show: "Like if I was the detective on that case? It could be healing to somebody to see what should happen. [Seeing] justice," Hargitay continued, "If a judge would do a different sentence. You know, that's healing for people to see the right thing, the just thing happen." Cast. Guest stars. On July 29, 2016, it was announced that then-Vice President Joe Biden would appear in the September 28 episode ("Making a Rapist") as himself to talk about the backlog of rape kits. Henry Thomas also appeared alongside Kelli Williams in the episode, Thomas portraying a  convicted rapist who is exonerated after DNA is freshly retested. On September 8, 2016, "The Hollywood Reporter" revealed that Anthony Edwards would guest star on "SVU". Edwards starred on the NBC medical drama "ER" as Dr. Mark Greene; in season four of the medical series, Mariska Hargitay guest starred as Greene's love interest, Desk Clerk Cynthia Hooper. Later, "TV Guide" announced that Edwards would be portraying Benson's very first partner out of the Academy, Sgt. Patrick Griffin in "Rape Interrupted". Griffin's son is the suspect in a rape investigation that puts Benson at odds with ADA Barba  and Griffin. "Hollywood Reporter" announced that rapper-actor Wyclef Jean was guest starring in the episode "Broken Rhymes" (originally titled "Bad Rap") as a famed music producer whose client is embroiled in an assault case. Mitchell Edwards portrayed Hype in the episode as well. On October 11, 2016, "Hollywood Reporter" reported that Gary Cole would guest star as a politician whose campaign goes haywire when several women go public with damaging accusations. The character and the episode, titled "Unstoppable," drew comparisons to then-presidential candidate Donald Trump. The episode was originally scheduled to air on October 26, but was then  delayed until November 16 after the election finished. The episode was pulled from the schedule a second time and is indefinitely shelved. Episodes. <onlyinclude> </onlyinclude> Shelved episode. "Unstoppable", written by Julie Martin and Rick Eid, inspired by the sexual misconduct allegations against then-presidential candidate Donald Trump and starring Gary Cole, was originally scheduled to air on October 26, 2016, but it was pulled from the schedule and has since been shelved. At the 2017 Television Critics Association winter press tour, Dick Wolf expressed his belief that the episode might air that spring. NBC currently has  no plans to air the episode, therefore shelving it indefinitely. Law & Order: Special Victims Unit (season 18) The eighteenth season of "" debuted on Wednesday, September 21, 2016, on NBC and finished on Wednesday, May 24, 2017, with a two-hour season finale. Rick Eid, who previously worked on "Law & Order" and "", became the executive producer and showrunner, following Warren Leight's departure from the series at the conclusion of the seventeenth season. Eid himself departed the series at the end of the eighteenth season and was replaced by Michael S. Chernuchin. Production. "Law & Order: Special Victims Unit" was renewed for