36 Celebs I Did Not Even Realize Guest-Starred On My Fave Teen Dramas

    More than one Oscar nominee got their start on a teen drama.

    1. Chris Pratt on The O.C.

    Chris/Che next to Seth

    2. Amy Adams on Buffy the Vampire Slayer

    Amy as cousin Beth talking to Tara

    3. Jessica Chastain on Veronica Mars

    Jessica as Sarah smiling outside

    4. Paul Rudd on Veronica Mars

    5. David O'Russell on Gossip Girl

    Serena talks to David O'Russell by the beach

    6. Khloé Kardashian and Kim Kardashian West on 90210

    Khloe and Kim Kardashian sitting on a couch smiling

    7. Rami Malek on Gilmore Girls

    Andy and Lane sitting next to each other with paper and pencils

    8. Olivia Wilde on The O.C.

    Alex with her hair teased looking behind her

    9. Tessa Thompson on Veronica Mars

    press photo of Jackie and Veronica crossing arms next to each other in front of lockers

    10. Paris Hilton on The O.C....

    Paris/Kate and Seth kissing

    11. ...and Veronica Mars

    Paris/Caitlin sitting next to Veronica

    12. Lindsay Lohan on Glee

    Lindsay pointing and talking in an office

    13. Maria Menounos on One Tree Hill

    Maria in a wedding dress as Jules

    14. Sebastian Stan on Gossip Girl

    Carter at Blair's house

    15. Seth Rogen on Dawson's Creek

    Seth as Bob outside a car

    16. Amanda Seyfried on Veronica Mars

    Lilly with her arm around Duncan

    17. Armie Hammer on Gossip Girl

    Armie as Gabriel talking to Serena

    18. Carmen Electra in 90210

    Carmen and Electra talking backstage

    19. Krysten Ritter on Veronica Mars

    Krysten as Gia on Veronica Mars

    20. Kelly Ripa on Riverdale

    Kelly holding a gun

    21. Denise Richards on 90210

    Denise at a cocktail party on 90210

    22. Karlie Kloss on Gossip Girl

    Karlie Kloss accepts a card from Juliet at Lily's house

    23. Former New York City mayor and presidential hopeful Michael Bloomberg on Gossip Girl

    the mayor next to a female aide

    24. Nikki Reed on The O.C.

    Sadie and Ryan sitting on the back of a car

    25. Jeff Goldblum on Glee

    Rachel with her dads in the living room

    26. Adam Lambert on Pretty Little Liars

    Adam, dressed as a vampire, talks to Aria

    27. Nick Offerman on Gilmore Girls

    Jackson, Beau, and Sookie at a baptism

    28. Whoopi Goldberg on Glee

    Whoopi sitting in the audience

    29. NeNe Leakes on Glee

    Nene talking to a shirtless Sam

    30. Kate Hudson on Glee

    Kate in a dance class with Rachel and other students

    31. Pete Wentz on One Tree Hill

    Pete and Peyton talking

    32. Joe Manganiello on One Tree Hill

    Owen and Brooke at Macy's

    33. Hilary Duff on Gossip Girl

    Olivia and Dan nuzzling

    34. Tim Gunn on Gossip Girl

    Tim looking at Jenny at a party

    35. Colin Hanks on The O.C.

    Colin/Grady sitting next to Rachel

    36. And finally, Lady Gaga on Gossip Girl

    Lady Gaga onstage performing