Friends: Top 10 Guest Stars Ranked

By Marc Snetiker
January 09, 2015 at 07:00 PM EST

1 of 11

Brad Pitt

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”The One With the Rumor” (Season 8)
Jennifer Aniston’s then husband starred in a Thanksgiving episode, playing a very different role: a founder member of the ”I Hate Rachel” club.

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2 of 11

Reese Witherspoon

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”The One With Rachel’s Sister” (Season 6)
The actress was utterly perfect as Rachel’s even-more-spoiled little sister Jill, who shook up her sib when she briefly dated Ross.

3 of 11

Paul Rudd

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Seasons 9-10
Pheobe’s best chance at normalcy was marrying geeky pianophile Mike, who became a beloved member of the group during 18 episodes.

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4 of 11

Christina Applegate

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”The One With Rachel’s Other Sister” (Season 9)
Rachel’s other sister was the despicably witless Amy, who didn’t know her niece’s name yet still wanted custody if her parents died.

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5 of 11

Susan Sarandon

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”The One With Joey’s New Brain” (Season 7)
Sarandon played a soap diva (think Susan Lucci) who struck up a romance with Joey after he let it slip her character would be killed.

6 of 11

Winona Ryder

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”The One With Rachel’s Big Kiss” (Season 7)
Nobody believed that Rachel had actually kissed her former sorority sister, played with hilarious closeted enthusiasm by Ryder.

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7 of 11

Bruce Willis

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”The One Where Paul’s the Man” (Season 6)
The action star won an Emmy—and got to hook up with Jennifer Aniston—playing the intimidating father of Ross’ student girlfriend.

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Tom Selleck

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Seasons 2,3, and 6
Magnum P.I. himself romanced Monica as Dr. Richard Burke, a friend of Monica’s father and Chandler’s biggest competition.

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9 of 11

Julia Roberts

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”The One After the Super Bowl: Part 2” (Season 2)
Roberts got sweet revenge as Susie, who stole Chandler’s clothes, stranding him in the restroom.

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10 of 11

George Clooney and Noah Wyle

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”The One With Two Parts” (Season 1)
The ER hunks appeared as—this is a stretch—cute doctors who went out with Monica and Rachel.

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