is arguably the most successful sitcom in history. The series ran for ten seasons throughout the 90s and 2000s as the audience fell in love with the six main characters. Because of its outstanding fame, the show is known for its wide cast of characters, which often includes some of the most famous and beloved celebrities of the time.
However, it's impossible to keep track of every actor and actress that ever appeared in Even though all of these guest stars were iconic, they often only appeared in one episode or even just for a couple of minutes, so people tend to forget they were even there in the first place.
Yet, that doesn't mean their appearance on the show wasn't memorable.
Many people may not remember Academy Award winner, on She plays the character of Cecilia Monroe, who is an actress in known for her iconic slaps. When the writers decide to kill Cecilia's character, Jessica Lockheart and put her brain inside Joey's character, Cecilia and Joey develop an enemies-to-lovers arc.
What's more, many people may not know that Eva Amurri, daughter of Susan Sarandon and also an actress, appeared in this episode as well.
Amurri played Jessica Lockheart's daughter in a brief scene, which is a bit ironic since she's also Sarandon's real-life daughter.
Brad Pitt is one of the most iconic actors in the movie industry, but many people may have already forgotten his brief yet hilarious appearance in one episode of . Pitt appears as Will Colbert, an old friend who went to school with Monica, Chandler, Ross, and Rachel.
When Monica invites Will for Thanksgiving, Rachel doesn't even recognize him and feels instantly attracted to him, but Will hates Rachel more than anyone as she was the most popular girl in her high school.
What's more, Will and Ross used to have an "I Hate Rachel" club. Pitt spends the whole episode making snide remarks towards Rachel and looking at her with hatred in his eyes. This is especially hilarious because Pitt and Jennifer Aniston were happily married at the time.
Dakota Fanning is a well-known and beloved actress who has appeared in several , and . Fanning started her career very young, and she became an instant success.
In fact, she appeared as a kid in one episode of "The One with Princess Consuela."
In this episode, Fanning plays Mackenzie, the little girl living in the house that Monica and Chandler are trying to buy. Joey starts talking to her, and she helps him understand that Chandler and Monica are moving to be happy, and he needs to respect his friends' decisions. Fanning was well-known for her role in a movie where she acts like an adult, and this mature character was reminiscent of that role. To this day, this is one of the best celebrity cameos in
in When Joey is cast in a World War 1 movie, Oldman plays his famous and successful co-star, Richard Crosby. Richard is an intense actor who spits when he delivers his lines, which Joey finds very obnoxious. However, at the end of the episode, Richard makes Joey understand the importance of pronunciation, and they both spit over each other while talking.
A funny thing about Oldman's character is that Joey says that he's famous for being one of "those Shakespeare guys," and Oldman himself is a part of the Royal Shakespeare Company.
So, Oldman was probably playing an exaggerated version of himself. This hilarious role even earned Oldman a Primetime Emmy Award for Outstanding Guest Actor in a Comedy Series.
Julia Roberts is one of the most iconic actresses from the 90s, so her appearance on the second season of was incredibly surprising for the audience. However, rumor has it that Matthew Perry convinced this actress to make a guest appearance on the show.
Roberts played Susie Moss, Chandler's elementary school classmate whom Chandler used to constantly prank.
When they run into each other as adults, Susie seduces Chandler and plays a joke on him, leaving him in only female underwear in a public restroom as sweet revenge. Safe to say Robert's appearance in couldn't have been better.
Hugh Laurie is known for his , such as and , and of course, his leading role as Dr. Gregory House in the medical drama during the 2000s. However, many people may not remember that Laurie appeared in one episode of
.
When Rachel flies to Ross's wedding in England, Laurie plays another passenger in the plane sitting beside Rachel. She talks non-stop during the entire flight about Ross and her relationship with him, which Laurie's character finds completely annoying. This interaction was hilarious, and it's a classic moment in Friends that not a lot of people remember.
Jennifer Coolidge is one of the most iconic comedy actresses in history, and she made an incredibly funny appearance on
Coolidge plays Amanda Buffamonteezi, a self-centered, vain, and out-of-touch woman with a fake English accent who used to live with Phoebe and Monica.
Amanda is always bragging about her physical appearance and her "skills", constantly saying that she's naturally talented and beautiful while making a joke of herself. The funniest Coolidge scene in the show is when she starts dancing in front of Chandler and asks him if he can believe that she didn't have any professional training -- which, by the looks of it, he definitely can.
In the very first season of George Clooney and Noah Wyle made a fantastic guest appearance on the show. The two actors portrayed Dr. Michael Mitchell and Dr. Jeffrey Rosen, two attractive doctors working in a hospital whom Rachel wanted to seduce after she sprained her ankle.
Even though they don't use the same names, the two characters are clearly a reference to as both Clooney and Wyle appeared in the popular medical drama. Since then, Clooney has become one of the most awarded and successful actors in Hollywood, but people do not always remember his hilarious and iconic cameo on
The new generations may know Winona Ryder for her outstanding role in but she's also one of the most famous actresses from the '80s and '90s. Ryder has appeared in extremely successful films such as , , and and received two nominations for the Academy Awards.
Ryder appeared as well in the seventh season of playing Rachel's college friend, Melissa Warburton. She showcased her nag for comedy by portraying a sassy yet naive character who spent most of her life in love with Rachel after they kissed at a party.
The whole thing was so ridiculous and over-the-top that even Phoebe ended up kissing Rachel to see what the big deal was about.
A lot of people may not remember that Robin Williams and Billy Crystal, two of the most outstanding comedy actors of their generations, appeared together in The reason behind this might be that Williams and Crystal only appeared during one comedy beat at the end of "The One with the Ultimate Fighting Champion," as two Central Perk clients having an intense conversation near the gang.
Funny enough, Williams and Crystal's scene was completely spontaneous.
The two actors were coincidentally around the set and were included in the episode at the last minute, with the two of them improvising all their lines. This happy coincidence, however, became one of the most hilarious and iconic moments in
