1. Amy Green
2. David the Scientist Guy
3. Will Colbert
4. Janice Litman Goralnik
5. Mike Hannigan
Mike (Paul Rudd) is Phoebe's perfect foil. Despite seeming straight-laced, he's as weird as she is. Plus, he says the most perfect line in the series when he tells Phoebe during their wedding vows that he loves her because she's "so wonderfully weird".
6. Todd, the Hombre Man
7. Sandy
Sandy (played by Freddie Prinze Jnr) is the male nanny hired by Rachel. He falls out with Ross after telling him that dinosaur toys are not 'age-appropriate' for either Emma… or him.
8. The Chick And The Duck
9. Ryan
10. Richard Burke
11. Paul Stevens
12. Mr. Treeger
Mr Treeger was the building superintendent at Monica, Rachel, Joey, and Chandler's apartment block. His most memorable moment was when Joey taught him ballroom dancing in exchange for him not reporting Monica and Rachel for illegal subletting.
13. Eddie Menuek
14. Melissa Warburton
15. Charles and Nora Bing
Chandler's warring parents (Kathleen Turner and Morgan Fairchild) who mentally scarred him with their acts of indiscretion with the pool boy.
10 points if you can name Chandler's dad's show in Vegas…
16. Ugly Naked Guy
17. Estelle Leonard
18. Ursula Buffay
Ursula was basically an evil Phoebe - just as kooky, but selfish, amoral and criminally insane.
She should have at least been brought back for Phoebe's wedding, or had a bad sister stand-off with Jill.