Vann92 said: "Leonard Nimoy as Spock."
crazy-diam0nd replied: "He wrote a memoir ages ago called 'I Am Not Spock' to really show how the role followed him around and damaged the career he had envisioned afterward. Then a few years before he died he wrote another called 'I Am Spock', which embraced the effect it had on his life and how his participation in a sci-fi TV series affected people."

From the land of down under, Hogan rose to fame due to his portrayal of the stereotypical Australian man, Mick 'Crocodile' Dundee. The original Crocodile Dundee movie was a big hit, but the two sequels, notably the long-delayed third film, couldn't match its success. In our minds, Hogan will always be Mick Dundee.

David Schwimmer and the character Ross Geller were the glue that held the Friends series together. His humor was spot-on, and the character built Schwimmer into a popular comedic actor. He did move to drama with Band of Brothers, but Geller couldn't be outshined by the other roles he took.

Star Wars and Mark Hamill wouldn't be so famous without the character of Luke Skywalker. Starring in the original and sequel trilogies, Hamill's acting career got built on the foundation that this character created. While he stayed away from other screen roles, he did voice some legendary cartoon and game characters.

bbbcurls said:
"Raul Julia in The 1991 movie adaptation of The Addams Family."

viewsofanintrovert replied:
"Yes he was a good Gomez. Probably my favorite Gomez Addams."

passed_turing_test said:
"Fran Drescher as The Nanny."

All_Lines_Merge replied:
"A few years ago my middle schooler was trying out for the school play. She was asked to do a 'New York' accent. She looked at me like 'what do I do?' And I wanted to suggest Fran Drescher but I knew there's no way my kid knows who that is. My daughter did get a part but not the character with the accent."

W00DERS0N replied:
"Hearing her normal voice in an Old Navy Xmas commercial blew my mind."

society15sick said:
"Sheldon Cooper as Sheldon Cooper

What do you mean he has a real name?"

FireflyRave replied:
"He was a good human version of a muppet in The Muppets."

Commenter replied:
"He is a pretty good actor, but he’ll still always be Sheldon Cooper to me."

What is up with Jerry Seinfeld these days? He is making money when his career is over. As mentioned before, he starred in and helped create one of the best series of the '90s, Seinfeld, and went on to have multiple seasons of it made. After the series ended, he continued to do stand-up comedy.

Adam West had to live on with the idea of being the first Batman actor, a role that defined his career. West was excellent as the Caped Crusader despite chewing the scenery in the silly comedic version of the character. Despite spending most of his screen time hidden by a cowl, he became a legend.

LolindirLink said:
"Macaulay Culkin.

I don't think anyone hit it as hard as Kevin Rich."

hungrybrains220 replied:
"Kevin McCallister, and yeah, he’ll never be anyone else lol."

The problem with the Harry Potter series — it became such a legendary franchise that actors couldn't top the characters they portrayed. Rupert Grint, known for his Ron Weasley character and his part in one of the best friendships in the series, did such a wonderful job with the character that he couldn't get over it.

Windmark88 said:
"Jack Gleeson as Joffrey Baratheon."

DislocatedXanax replied:
"One of the many reasons he stepped away from acting."

Ralph Macchio has quite a collection of movies. He starred alongside Tom Cruise in The Outsiders and shared the screen with Joe Pesci in My Cousin Vinny, but these days he is more known for his work in Karate Kid. His portrayal of Daniel LaRusso shot up his career and set too high of a bar to reach.

The role of Ernest made Jim Varney a household name. Through the years, Varney played this goofy character in many commercials and a couple of movies and did some voice work on the Toy Story movies. Sadly, in 2000, Varney passed away due to lung cancer. His character and humor live on through Ernest.

Dwight Schrute would be nothing without the deliveries of jokes that Rainn Wilson perfectly executed. Sadly, this character was at the peak of his career, popularity-wise. He appeared in other television shows and movies, and luckily, like Ross Geller from Friends, Shrute is still quite popular these days.

Furlong had never performed on-screen until taking on the role of John Connor in Terminator 2: Judgment Day. Then he made an appearance as a pivotal character in a blockbuster sequel. Furlong, though, was never really able to duplicate that accomplishment. He never had a lasting acting legacy as an adult since his movie career fizzled out.

Ecstatic_Put_1854 said: "Aaron Paul as Jesse Pinkman."
gothic_melancholy replied: "Will always hear him as Todd from BoJack."

When thinking about Anthony Perkins, you might not think about his Oscar-nominated Friendly Persuasion work, but instead, focus on the Psycho role of Norman Bates. Perkins became so emotionally invested in that part that he portrayed it in three sequels. Perkins was also permitted to helm the third.

IvanBeetinov said:
"The dude who played Napoleon Dynamite will always ONLY be Napoleon Dynamite."

chickenbiscuit17 replied:
"Nah man he was f*cking golden in blades of glory too."

Commenter said:
"Frankie Muniz as Malcolm Wilkerson."
 
RubberDuckyUthe1 replied:
"I never knew the family’s last name until now."

19murphy66 said:
"Brent Spiner will always be Data. He did have a great part in Independence Day though."

Ikrit122 replied:
"Or one of the various members of the Soong family: Data's android brother, Data's creator, Data's other android brother, Data's creator's ancestor who was a geneticist, Data's creator's other ancestor who was also a geneticist, Data's human brother that no one knew existed, and whatever role he will play in Picard Season 3, probably related to Data."

Linda Blair is usually recognized for her part in the legendary horror movie The Exorcist, even though she got completely covered in makeup. Pea soup vomit usually stays with us. But after that, she was mostly cast in exploitation movies and B-movies like Hell Night and Chained Heat.

Grey played the supporting part of Jeanie Bueller in the box office success Ferris Bueller's Day Off. Dirty Dancing, for which she received a Golden Globe nomination, gave her her first significant leading role as Baby Houseman. Since then, her participation in Dancing with the Stars has been her most famous professional achievement. 

Alicia Silverstone was one of those '90s actresses that dominated the screen with a single role and just disappeared in later years. With her portrayal of Cher Horowitz in Clueless, Silverstone built a strong connection with younger viewers. Sadly, it slowed down, and only in the past few years has her career started to pick up speed again.

KittyPitty said:
"Jensen Ackles (Dean Winchester in Supernatural) and Daniel Radcliffe (Harry Potter)."

Commenter replied:
"He was really good in the boys, after a while didn't even associate him with Dean because the roles are really different."

Lost had quite the assembly of characters — Kate, John, Hurley, and Charlie — but Sawyer was one of the coolest. Josh Holloway shaped the island survivor naturally and interestingly. This character set the bar for his career and slowed down the development of Holloway's acting career.

fridaynightarcade said:
"Ron Swanson.

(I know his name is Nick Offerman, but he'll always be Ron Swanson.)"

CuddlySubject replied:
"Yes! I saw him in an ad for something else and he had no moustache and EVERYTHING in the world felt wrong in that moment."

centaurquestions replied:
"In that case, it kind of is him. Most of the characters on that show were specifically built around the actors. Once they cast Offerman, they integrated all his unusual talents (woodworking, saxophone, etc) into the character."

Hayden Christensen played Anakin Skywalker, often known as Darth Vader, in two semi-successful Star Wars prequel movies. Plenty of fans didn't like how he performed, which could be the reason Christensen hasn't had any big performances since this portrayal. It seems like Christensen didn't have the high ground, career-wise.

In She's All That, Cook enchanted viewers in the role of the female protagonist alongside Freddie Prinze Jr. She then had the opportunity to portray Josie in the film Josie and the Pussycats. Although that movie was entertaining, it was a complete failure and ended Cook's acting career, with She's All That remaining her lone genuine hit.

Robert Patrick was the scariest villain in the Terminator franchise. Patrick terrorizes John and Sarah Connor through the shape-shifting, liquid metal T-1000 before Arnold Schwarzenegger's character finally defeats him in an icy way. This character launched his mediocre career on the screen and television.

Commenter said:
"Alfonso Ribeiro as Carlton Banks from The Fresh Prince of Bel-Air."

play_Max_Payne_pls replied:
"Has he had any other roles though? I genuinely can't remember.

But this can also apply to every other cast member other than Will himself and James Avery (Shredder!)"

wayneluke23 said:
"James Gandolfini / Tony Soprano."

Truck_Stop_Sushi replied:
"I once saw an interview with him and it was strange hearing him speak in his regular voice and not Tony’s."

varnell_hill said: "Bro that plays Jon Snow may as well legally change his name to Jon Snow because we’re never going to stop calling him Jon Snow."
KenzoGinseng replied: "Doesn't really help that he keeps the exact same hairstyle and beard as he did in the show but I guess that's raking in the views. I also don't really understand how so many watch movies just because said actor is in it as that would kinda ruin the immersive by just going to watch an actor." 

ShadowhuntingWeezer said:
"Matthew Gray Gubler as Spencer Reid."

WinterPublic2776 replied:
"I literally can’t see him as anything other than Reid."

PupperPetterBean replied:
"Have you see the little documentary about his house? It's f*cking incredible. He keeps teeth in his chimney."

While Keanu Reeves might have reached higher peaks with his roles as Neo and John Wick, Alex Winter couldn’t outshine his Bill character. After all, when you are the time-traveling buddy of Ted, a.k.a. Keanu Reeves, there is not a role in the world that could even come close to rivaling it.

Peter Ostrum decided to change careers after portraying one of the best characters in his filmography list — Charlie Bucket in Willy Wonka and the Chocolate Factory. Since Bucket was the protagonist, Ostrum had to share the screen with Gene Wilder. After this Hollywood hit, Ostrum decided to become a veterinarian.

Commenter said: "Daniel Radcliffe (Harry Potter)."
Mr_Crair replied: "Idk, a few years ago I did see him like that, but now with the films he has done after that, I picture him saying something like: 'man, this script is bloody weird, it's disgusting I don't know who came up with this idea but they have issues... So, when do we start filming?'"
TonyBanbanbony replied: "Disagree, he grew out of it."

Aah, Nadia. This legendary character of the '90s got portrayed by Shannon Elizabeth in the legendary movie series American Pie. This role launched her comedy movie career, which saw her perform in movies like Scary Movie and Jay and Silent Bob Strike Back. However, her Nadia character wasn't surpassed by her later work.

Greystorms said:
"Jason Alexander as George Costanza."

forman98 replied:
"It's funny because Jason Alexander comes off as very refined and high minded in interviews, but it just comes off as George Costanza trying to act classy or something. Jason Alexander was probably the most trained actor on the show and he played the part too well."

dudebronahbrah replied:
"Did you ever see him in his Criminal Minds role? True psychopath and he played it as well as anyone could, but he still came off as funny, because you can’t shake that it looks like it could be some episode of Seinfeld where he gets a part in a play or something."

Marlee Matlin might be the exception to the one-hit-wonder curse, but this is still to be seen. After her first appearance on the screen with the character of Sarah Norman in Children of a Lesser God, her career didn't pick up speed. However, her role in the Oscar-nominated CODA might give it a boost.

Vegetable_Kale_8144 said:
"Elijah Wood will always be Frodo to me."

TheKalebPerkins replied:
"Likewise with Viggo Mortensen as Aragorn."

astaldotholwen replied:
"I feel the same way about Orlando Bloom forever being Legolas to me.

But Elijah will always be the kid from Flipper for me."

When Quentin Tarantino casts you in a role, the high chances are that your early career was full of potential. Such was the case of Dennis Christopher, who, after winning a BAFTA award for his portrayal of Dave Stohler in Breaking Away, couldn't live up to the expectations that got raised by the character.

Patrick Fugit got his career-changing role when he was just 18 years old! This fact might suggest that he had quite a career afterward, but sadly, his William Miller character in Almost Famous was a role too high to break. He went on to have a more mediocre career, starring in television shows and movies that brought in quite a buck.

yomanthehell said:
"McLovin !"

Beneficial_Car2596 replied:
"Are you talking about that 25 year old Hawaiian organ donor?"

sinapz replied:
"Apparently the actor who plays McLovin hates being called McLovin which makes it even better."

Staticgoatx said:
"Charlie day as Charlie Kelly. Seeing him in pacific rim is ALWAYS a trip."

Easy_Parsley_1202 replied:
"Every single one of the cast honestly. I was watching AP Bio and honestly I can’t unsee Dennis as Jack Griffin."

alliesawn said:
"John Krasinski as Jim Halpert."

Michael_Oxlong replied:
"Watching him play Jack Ryan was really difficult to take seriously."

sven9yo replied:
"I was waiting for him to look at the camera."

Piper Perabo made her acting debut in the strangely named movie Coyote Ugly. For the young actress, the role seemed to have opened the door to multiple Hollywood roles, but the leading movie parts just stopped coming. These days, her career is full of minor TV roles and some supporting roles in movies.

bennygal16 said:
"Rowan Atkinson as Mr. Bean."

GreenChopsy5 replied:
"Undoubtedly yes, but Blackadder is one of the finest TV shows ever made. The acting and jokes are on point."

Admetus replied:
"Blackadder is why I no longer associate Rowan Atkinson with Mr Bean. He's shown great delivery in his other characters too."

Commenter said:
"Matt Smith is currently freaking me out on House of the Dragon. I'm uncomfortable watching Doctor Who use the C-word."

FallenFae replied:
"Yuuuup. Especially considering he was my favorite doctor hahaha."

YukixSuzume replied:
"I saw the previews and I was like: Why is Prince Phillip eyeballing everyone under an angry brow?"

Evil_incorporated_ said:
"Hugh Laurie as Dr. House."

Littleleicesterfoxy replied:
"He was also terribly memorable as Bertie Wooster!"

OcelotSpleens replied:
"Some of my favorite ever comedy moments are Hugh Laurie in Blackadder. The rest are Rik Mayall in Blackadder."

Carnesir85 said:
"Neil Patrick Harris as Barney Stinson."

Arblechnuble replied:
"Doogie Howser for the older crowd."

sweet_jones replied:
"Neil Patrick Harris as Neil Patrick Harris in the Harold and Kumar franchise."

Outside-Setting-5589 said: "My boi Brendan Fraser will ALWAYS be my boi Rick O'Connel. The first icon of absolute unadultered badass heteropatriarchal masculinity I ever had as a kid. They don't make heroes like him anymore."
shenanigansgalores replied: "Hey hey, George of the jungle man. George."

SueCassidy said:
"Hugh Jackman will always be Wolverine!"

rdickeyvii replied:
"Yea I enjoyed the movie where wolverine tried to get out of fighting everyone and started a circus for a while."

makindex said:
"Morgan Freeman will always be God."

MBCB421 replied:
"He's president Mandela for me."

JBShackle2 replied:
"That was just God cosplaying."

abacaxi95 replied:
"Every time I try to remember what Mandela actually looked like, all my brain can come up with is Morgan Freeman."