She was pregnant, and production refused to accommodate the schedule changes she needed.

She was subsequently labeled “difficult” and “ungrateful.”

In 2021, she toldToday, “The ‘ungrateful’ thing bothers me the most.

Michael Scott, dressed in a suit and tie, sits with arms crossed at a desk with office items and blinds in the background

And that is my fault.

I allowed myself to be perceived that way.

So much about living life, to me, is about humility and gratitude.

Deangelo dressed in a business suit, sitting at a desk in an office setting with a keyboard and various office decor surrounding him

Of course, Im grateful.

How can I not be?”

4.Grace Park played Officer Kono Kalakaua onHawaii Five-0for seven seasons.

Shirley in jacket with a hood, holding a coat, standing in a room with shelves and books in the background

However, when she and CBS were unable to reach an agreement, she decided to leave the show.

His character was killed off in “a violent yet comedic death” a Zamboni accident.

7.Suzanne Somers played Chrissy Snow onThree’s Companyfor five seasons.

Katherine in the hospital in the show

However, ABC only offered a $5,000 raise.

She was ultimately fired.

Jenilee Harrison was brought in as Cindy Snow, Chrissy’s cousin.

Grace Park in tactical gear, walking with determination near an SUV on a street

8.In theDynastyreboot, Nicollette Sheridan was originally cast as Alexis Carrington Colby.

However, sheleftnear the end of Season 2 “so you can focus on some personal family responsibilities.”

Ana Brenda Contreras then played Cristal for Season 2, but sheleftdue to “personal reasons.”

Daniel Dae Kim stands talking on a phone, wearing a casual shirt and jeans with a police badge on his belt. Another officer in uniform is in the background

And lastly, for this show, Daniella Alonso played Cristal for Seasons 35.

He was promptlyfired, and his character was killed off in a freak subway accident.

He was replaced by Ashton Kutcher.

Jay and Rhea sitting at a dinner table on the show

11.In 2013, Selma Blair reportedly criticized herAnger Managementcostar/executive producer Charlie Sheen’s work ethic.

In retaliation, hefiredher in an expletive-laden text message.

Laura Bell Bundy replaced her.

Chrissy in a bar scene, clutching handbag, with two pigtails hairstyle and an unhappy expression. Background includes a bar and patrons

13.Roseanne Barrplayed Roseanne Harris-Conner onRoseannefrom 19881997 then returned for the series revival in 2018.

However, she was fired after posting a racist tweet.

14.On theCommunityset, Chevy Chase used a racial slur while ranting about his character arc.

Cindy with blonde curly hair smiling, wearing a satin blouse, sitting near a floral arrangement

So, ahead of Season 5, NBCmade a dealwith him to get him to leave the show.

His character was later killed off offscreen.

Noah Centineo took over the role in Season 3.

Alexis in a plush chair holding a bottle of liquor in one hand and a glass in the other, dressed in a luxurious fur coat, appearing relaxed

Jennifer Nicole Freeman then played Claire for Seasons 25.

The show jokinglyacknowledgedthe recasting.

17.John Rhys-Davies left his role onSlidersafter complaining to the writers about the quality of their work.

Elizabeth Gillies as both Fallon and Alexis in a scene

Charles Melton played Reggie for the remainder of the series.

That just doesnt happen in the community.

We dont think that way.

Alexis in a sparkly dress holding a makeup product, in front of woman in colorful suit

We dont act that way.

22.Chad Michael Murray played Lucas Scott onOne Tree Hillfor six seasons before leaving over salary disputes.

Whitmire told theNew York Times, “This is my life’s work.

Cristal in a dress holds a key card and a coat while standing indoors, facing a man in a suit

Judyann Elder took over the role for the final nine episodes.

Jane Sibbett played Carol for the remainder of the show.

Aubrey Anderson-Emmons played Lily for Seasons 311.

Cristal stands in an elegant off-shoulder bridal gown in a stately, ornate room with columns

Kyndra Sanchez played Dawn in Season 2.

For the final season, Giselle Eisenberg played Anna-Kat.

30.For the first two seasons ofBoy Meets World, Lily Nicksay played Morgan Matthews.

Cristal with long wavy hair and a floral off-shoulder outfit smiles while seated at a bar. Another person is blurred in the background

For Seasons 37, Lindsay Ridgeway took over the role.

Both actors reprised the role on the series finale ofGirl Meets World.

When Greg returned in Season 4, he was played by Skylar Astin.

Charlie on the show

32.OnThe GoldbergsSeasons 45, Rowan Blanchard played Jackie Geary.

However, shepassedon Season 6.

Alexis G. Zall took over the role for Season 6 then returned in Season 10.

Selma acting opposite Charlie

34.Valerie Harper starred as Valerie Hogan on the Lorimar Productions sitcomValeriefor two seasons.

Lorimar turned her down, so she stopped showing up for work.

She returned to set when they compromised at $65,000 an episode and 12.5% of the profits.

America Ferrera wearing a store employee vest, sits at a desk and looks ahead with a concerned expression

However, a week later, they fired her.

The show wasrenamedValerie’s Familyand continued into the third season without her.

Her character was killed off, and Sandy Duncan joined the cast as Sandy Hogan, Valerie’s sister-in-law.

Roseanne Barr sits on a couch, holding an ice pack. The couch has a crocheted blanket on the back. She wears a patterned shirt and appears to be in conversation

36.Lauren Cohan played Maggie Greene onThe Walking Deadfrom 2011-2018.

After her first contract was up, it was time to renegotiation with AMC.

Shereportedlyasked for equal pay with her male costars.

chevy standing behind a podium with peace signs up

This is maybe just not a fit anymore.'”

However, she also left the door open for her character to come back.

In 2020, she returned.

Jesus in casual clothing looking up at someone else drinking from a solo cup

37.Maggie Roswell voiced Maude Flanders onThe Simpsonsfrom 1990-1999.

She asked Fox to raise her salary from $1,500-$2,000 an episode to $6,000.

So, she quit.

in a scene, Jesus calls his moms into the kitchen and surprises them with his new look

Maude was killed off in the 2,000th episode “Alone Again, Natura-Diddily.”

38.And finally, onSupernatural, Katie Cassidy played Ruby in Season 3.

She reprised the role in Season 15.

Jazz, wearing a bandana and cardigan, gesturing with both hands raised. Indoors with plants in the background

Two people in conversation. Top: Claire asks, "What are you talking about? I just pulled my hair back, that's all." Bottom: her dad replies, "Well, whatever it is, you look like a whole new person."

John in Sliders

Reggie with backward baseball cap talking to another person in a hallway

Veronica and Reggie, both dressed in dark, formal suits, stand outside, looking serious

closeup of John

Batwoman, in a dark superhero suit with a bat emblem and bright hair, faces a person with their back turned in a laboratory setting

Sonny speaking with Tawny, Zora, and Grady in casual clothing on a set

Lucas stands in a collared shirt with undone bowtie and suspenders, looking thoughtful

Steve puppeting Kermit

Harriette smiling while wearing a patterned blouse with puffed sleeves and hoop earrings

Carl and Harriette, in cozy robes, sit on a couch.

Anna Faris, wearing a long-sleeve shirt and shorts, leans over a wooden table, gesturing with her hand in a scene from a TV show

Ross and Susan watching as the doctor gives Carol an ultrasound

Susan and Carol at their wedding

Mitchell holding baby Lily

Lily in a floral headband and princess dress smiles, standing in front of two adults in black suits.

Dawn wearing a hoodie with a forest emblem, standing in a wooded area

Sitting by a window, Dawn says, "Three weeks in southern California, where the sun shines as advertised. I feel like a whole new person!"

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Anna-Kat talks about summer camp, and Katie says kids change

Young Morgan sitting on a couch with a basketball, wearing a floral sweater and checkered pants, smiling at the camera

in a scene, Cory says Morgan is a great sister because she stays upstairs and out of his personal life, and Morgan says she just got out of the longest timeout she's ever had

the two adult Morgans sitting on a couch in conversation

Greg behind a diner counter, with another patron seated further back. Various sports items are displayed on the wall

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Rowan with shoulder-length dark hair, wearing collared shirt and dark jacket, smiles warmly in front of artwork

Two stills from a TV show featuring characters Jackie Geary and Adam Goldberg in a high school hallway scene. Caption reads, "Turns out, there was one person who changed a ton over the summer — my sci-fi loving, theater geek girlfriend, Jackie Geary."

Marissa in a casual long-sleeve shirt with patterned shoulders and jeans stands on a beach, looking slightly to the side. The ocean is visible in the background

A woman poses with a hand under her chin, smiling, wearing a patterned scarf, bright blue top, and metallic earrings

Smiling Sandy with short blonde hair, wearing a patterned sweater. She is surrounded by various wooden animal figurines, including horses and a goat

Eric wearing a "Fatso Burger" uniform holds a tray with fast food items

Randy sitting on a couch, talking, with various items on a coffee table in front of him

Lauren Cohan in a forest looking down with a serious expression. She wears a buttoned-up shirt

Maggiein an outdoor setting, gazes downwards with a serious expression, wearing a wide-brimmed hat

Maude Flounders from The Simpsons wearing a blouse, vest, and skirt. She has curly hair and is standing

Maude falling while being hit by rolled towels

Ruby with long hair, in a serious expression, holds a large knife with both hands in a defensive stance inside a dimly lit room

Ruby kissing Sam while Dean awkwardly looks away