Community·Posted on Aug 12, 201914 Actors You'll Never Believe Guest-Starred On "Friends"Yes, that's where you know them from.by Cristina LupoCommunity ContributorApproved and edited by BuzzFeed Community TeamLinkFacebookPinterestTwitterMail 1. Brad Pitt as Will Colbert Tap to play GIF Tap to play GIF 2. Winona Ryder as Melissa Warbutron Tap to play GIF Tap to play GIF 3. Reese Witherspoon as Jill Green Tap to play GIF Tap to play GIF 4. Hugh Laurie as an airplane passenger Tap to play GIF Tap to play GIF 5. Ellen Pompeo as Missy Goldberg Tap to play GIF Tap to play GIF 6. Gabrielle Union as Kristen 7. John Stamos as Zack 8. Danny DeVito as Roy the Stripper Tap to play GIF Tap to play GIF 9. Julia Roberts as Susie Moss 10. Bruce Willis as Paul Tap to play GIF Tap to play GIF 11. Jane Lynch as a real estate agent 12. Jason Alexander as Earl Tap to play GIF Tap to play GIF 13. Dakota Fanning as Mackenzie 14. And Billy Crystal and Robin Williams as Central Perk customers