43 Celebs That Appeared On "Law & Order: SVU" That'll Make You Say, "OMG I Didn't Know That!"

    After playing Lizzie in Lizzie McGuire, Hilary Duff appeared in an episode in 2009.

    1. This Is Us and Gilmore Girls star Milo Ventimiglia appeared as Lee Healy, a teenager whose stepfather is out to get him.

    2. Before playing Annalise Keating in How to Get Away With Murder, Viola Davis guest-starred as lawyer Donna Emmett in several SVU episodes from 2003–2008.

    3. Academy Award nominee Bradley Cooper appeared as defense attorney Jason Whitaker in 2005.

    4. The Handmaid's Tale star Ann Dowd played three different characters on SVU between 2001 and 2009.

    5. Before playing Haley Dunphy on Modern Family, Sarah Hyland appeared as two different characters on SVU.

    6. Academy Award winner Jeremy Irons guest-starred as Dr. Captain Jackson in two episodes.

    7. The Vampire Diaries star Paul Wesley played two different characters on SVU between 2000 and 2005.

    8. After playing Lizzie in Lizzie McGuire, Hilary Duff appeared in an episode in 2009.

    9. Emmy Award winner Carol Burnett guest-starred as Birdie Sulloway, a woman who's suspected of killing her husband.

    10. Mean Girls star Amanda Seyfried appeared as Tandi McCain, a sexual assault survivor, in a 2004 episode.

    11. Maleficent and The Beguiled star Elle Fanning played Eden, a young girl who was found at a shady adoption agency.

    12. After playing Emily Gilmore in Gilmore Girls, Kelly Bishop appeared in two episodes of SVU as defense attorney Julia Zimmer.

    13. Before Unbreakable Kimmy Schmidt and 30 Rock, Jane Krakowski appeared in an episode in 2004.

    14. Nashville star Hayden Panettiere played two different characters on SVU between 2001 and 2005.

    15. Tennis pro Serena Williams played the character of Chloe Spiers in an episode in 2004.

    16. Pitch Perfect and The Hunger Games star Elizabeth Banks appeared as Jaina Jansen, the prime suspect in a murder investigation.

    17. Twin Peaks star Kyle MacLachlan actually played two different roles on SVU between 2004 and 2011.

    18. Before she was saving the galaxy as Gamora in Guardians of the Galaxy, Zoe Saldana appeared on an episode of SVU in 2004.

    19. Full House star John Stamos guest-starred in an episode in 2011.

    20. Will & Grace star Debra Messing guest-starred as Alicia Harding, a TV host who begins receiving death threats.

    21. Shameless alum Noel Fisher played CSU tech Dale Stuckey in a few episodes in 2009.

    22. Before starring as Daryl Dixon in The Walking Dead, Norman Reedus appeared as Derek Lord, an outspoken rock star.

    23. Pop star Jesse McCartney appeared in an episode in 2008.

    24. American Horror Story star Sarah Paulson appeared as Anne Gillette, an heiress who was the prime suspect in the murder of her parents.

    25. Before playing Clay in 13 Reasons Why, Dylan Minnette appeared in an episode in 2012.

    26. My Big Fat Greek Wedding star Nia Vardalos guest-starred as Minonna Efron in several episodes in 2013–2014.

    27. Academy Award winner J.K. Simmons appeared as Dr. Emil Skoda in Season 1 and Season 2.

    28. Before starring in Jane the Virgin, Andrea Navedo played a woman who slept with Det. Nick Amaro while he was undercover.

    29. Hamilton alum Leslie Odom Jr. appeared in several episodes of SVU as Reverend Curtis Scott.

    30. Full House star Bob Saget guest-starred as Glenn Cheales, a murder suspect, in Season 8.

    31. Academy Award winner Whoopi Goldberg guest-starred as Janette Grayson, a business woman who falsely reported child abuse.

    32. Before she was singing in Pitch Perfect, Brittany Snow appeared as Jamie Hoskins, a student suspected of murdering another student.

    33. After starring as Sabrina in Sabrina the Teenage Witch, Melissa Joan Hart appeared as Sarah Trent, a teacher accused of sexually assaulting one of her students.

    34. Will & Grace star Eric McCormack guest-starred as murder suspect Vance Shepard.

    35. Before she was Eliza on Younger, Sutton Foster played Rosemary, a member of a lesbian rights group whose friend is murdered.

    36. American Horror Story alum Denis O'Hare has played two different characters on SVU, one in Season 1 and the other in Season 14.

    37. Veep and Arrested Development star Tony Hale appeared in an episode in 2012.

    38. Sex and the City star Cynthia Nixon guest-starred in an episode in 2007.

    39. Long before starring in House of Cards, Kate Mara appeared in an episode of SVU during Season 2.

    40. Shameless star Cameron Monaghan appeared as Eddie Sandow, a teenager who holds two people hostage and has a special bond with Olivia Benson.