15 Celebs You Had No Idea Were On ‘Law & Order: SVU’

Law & Order: SVU first aired in 1999, and it is going into its 17th season this fall. Even if you consider yourself a hardcore fan, it can be difficult to keep track of the show’s countless guest stars. Many actors who had one-time roles on SVU went on to become huge stars. Here are 15 celebrities you probably didn’t know were once on Law & Order: SVU.

1. Natasha Lyonne

Season 13, Episode 8

Natasha Lyonne is one of many Orange is the New Black cast members to appear on SVU.

2. Amanda Seyfried

Season 6, Episode 5

Shortly after the release of Mean Girls, Amanda Seyfried was on SVU as a teenage girl who couldn’t keep her story straight.

3. Jesse McCartney

Season 10, Episode 6

Who knew that our favorite middle-school heartthrob had a one-time role on SVU?

4. Hilary Duff

Season 10, Episode 19

Speaking of throwbacks, Hilary Duff graced SVU with her presence in 2009.

5. Kate Mara

Season 2, Episode 9

You know her from House of Cards, but more than 10 years earlier, Kate Mara played a competitive gymnast on SVU.

6. Sarah Hyland

Season 3, Episode 1

Season 10, Episode 12

The Modern Family starlet was actually in two different SVU episodes.

7. Hayden Panettiere

Season 2, Episode 11

Season 6, Episode 15

Before Nashville or even Heroes, you could find Hayden Panettiere on SVU.

8. Elizabeth Banks

Season 3, Episode 7

You probably know her as Effie Trinket from The Hunger Games films, but back in 2001, Elizabeth Banks added SVU to her long list of acting credits.

9. Bradley Cooper

Season 6, Episode 20

Even People’s 2011 “Sexiest Man Alive” had his time on SVU.

10. Ty Burrell

Season 3, Episode 15

Another Modern Family cast member, Ty Burrell, can be seen in an early SVU episode.

11. Emily Deschanel

Season 3, Episode 17

Bones star Emily Deschanel played a concert cellist in her episode of SVU.

12. Abigail Breslin

Season 6, Episode 1

Abigail Breslin may be all grown up, but she was only 8 years old when she guest-starred on SVU.

13. Brittany Snow

Season 7, Episode 22

Before playing a collegiette in Pitch Perfect, Brittany Snow portrayed a pre-collegiette who suffered from bipolar disorder.

14. Elle Fanning

Season 8, Episode 8

You’ll most likely recognize her now from Maleficent, but Elle Fanning has been acting since she was almost 3 years old. At age 8, she was in a super creepy SVU episode.

15. Ian Somerhalder

Season 4, Episode 20

The Vampire Diaries hottie Ian Somerhalder was one of SVU’s most disturbing guest stars of all time.

Now that you're in the mood to binge-watch SVU, see if you can find your favorite actors and actresses before they were famous!