10 Celebrities You Didn’t<br />Know Appeared on ‘Friends’.<br />With a total of 10 seasons to its name,<br />‘Friends’ starred a number of other well-known<br />celebrities you may not have recognized. .<br />In honor of the show’s 25th anniversary,<br />here are 10 celebrities that made guest<br />appearances on ‘Friends.’.<br />1. George Clooney.<br />2. Jennifer Coolidge<br />.<br />3. Dakota Fanning<br />.<br />4. Danny DeVito<br />.<br />5. Jane Lynch.<br />6. John Stamos<br />.<br />7. Winona Ryder.<br />8. Ben Stiller.<br />9. Julia Roberts<br />.<br />10. Brad Pitt
