Often, actors will receive their scripts as they go.

In other words, they don’t always know what path their character will take.

Usually, actors accept the fate of their character without much fuss.

Amber Benson in Buffy

We’ve taken a look at some of the irresolvable impasses in TV history.

Want to find out which TV episodes never came to be because of an actor?

Here are some TV episodes that actors simply would not do.

Katherine Heigl in “Grey’s Anatomy”

“Just wasn’t coming.

Wasn’t going to do it.”

It turns out that this story may be a little more complicated than Vernoff made out.

Christopher Eccleston in “Doctor Who”

A source toldEntertainment Weekly, “Krista is mistaken.

I didn’t feel that what they were asking me to do did justice to the Ninth Doctor.

So I said no.”

Matthew Perry as Chandler in “Friends”

And, as he said at Comic Con, he never received an apology from the online grid.

Sounds like this was one role that Eccleston was never that keen on reprising in the first place.

It sounds like this particular episode plot line didn’t sit well with Perry.

Amber Benson in “Buffy the Vampire Slayer”

Or maybe Perry just didn’t think the episode was that funny.

No matter, it’s one plot line that we aren’t too sorry to not have seen.

“Quite frankly,” he said, “that was not plan A.

Adewale Akinnuoye-Agbaje in “Lost”

Plan A was to bring Tara back.”

However, Benson didn’t want to come back.

In an interview withDigital Spy, Benson gave her side of the story.

Charlie Sheen in “Two and a Half Men”

Apparently, Whedon had proposed that a villain would have taken her character’s form.

She didn’t want fans to see Tara as a villain, so that’s why she said no.

For a while, it seemed as though Akinnuoye-Agbaje would return for the final season.

Patrick Warbuton smiling

Unfortunately, Akinnuoye-Agbaje ended up turning the producers down.

Sadly, fans never got to see Mr. Eko return because of this disagreement.

The show continued for four seasons without Sheen (viaCBR).

Kim Cattrall in “Sex and the City”

Lorre shared, “We shook hands and went our separate ways …

It was not meant to be.”

The character was ultimately crushed by a piano and presumably killed off for good.

Paul McCartney posing

When it came to one episode in particular, Warburton had to put his foot down.

It’s not funny but so offensive to any Christian."

Luckily, it seems the writers took note, and Warburton praised the writers for understanding.

“They are all great and listen to you.

They know I’m a team player.

They know how offensive that was,” he said.

However, the announcement came with the news that Kim Cattrall would not be returning as Samantha.

As she toldThe Guardianin 2019, she had actually wanted to quit much earlier.

“It was a blessing in so many ways but after the second movie I’d had enough.

I couldn’t understand why they wouldn’t just replace me with another actress instead of wasting time bullying.

No means no.”

Apparently, she and co-starSarah Jessica Parkerdidn’t exactly get along.

You are not my friend."

Yikes, no wonder Cattrall couldn’t be persuaded to do another episode as Samantha.

“I went through his manager and gave him all the details,” Litt recalled.

It seems that McCartney considered the offer, but ultimately said no.

As Litt said, he sent her a personal fax.

Ultimately, the role went to British actorTom Conti.