'Prepare yourselves': 'Big Bang Theory' cast shares emotional photos from last table read

The end of "The Big Bang Theory" is getting real for the cast.

The stars of the hit CBS comedy documented their final table read on Instagram Wednesday, and based off Kaley Cuoco's reaction, its appears the last episode is going to be a tearjerker.

"Prepare yourselves ... for a finale that has truly given me a loss for words," Cuoco captioned a picture of the final episode's script covered in tissues, before reciting the beginning of the show's theme song: "Our whole universe."

Cuoco, who plays Penny in "The Big Bang Theory," admitted that she "didn’t sleep" before the final script read and shared a picture of herself breaking down in tears afterwards.

"Post table read for @bigbangtheory_cbs finale episode," she wrote.

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In January, Cuoco told Ellen DeGeneres that the cast and crew were "getting super-emotional" as the finish line approaches, adding that "out of nowhere, I just started bawling."

She predicted that she wouldn't "be able to keep a dry eye" shooting the series finale. (Her co-stars agreed, deeming her the most emotional of the entire cast and crew.)

Related: Kaley Cuoco talks 'The Big Bang Theory' finale: 'I don't think I'll be able to keep a dry eye'

Kunal Nayyar, who portrays Rajesh Koothrappali, also shared a picture of the "End Series" script, writing, "Just read the final episode... Gnite."

Johnny Galecki (Leonard Hofstadter) commented, "Roughest page ever read."

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Melissa Rauch (Bernadette Rostenkowski-Wolowitz) shared a black-and-white image of herself embracing her co-stars in a group hug. "Just because I haven’t flooded my face with enough tears during/after today’s final @bigbangtheory_cbs table read...here’s a pic of our pre-show huddle last night," she captioned the post.

Rauch added that she'll "forever cherish these moments with my ("The Big Bang Theory") brothers and sisters," adding that their huddle was "extra special."

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Mayim Bialik (Amy Farrah Fowler) took a moment Tuesday to express her gratitude for Rauch. Both actresses had recurring roles on Season 3 of "The Big Bang Theory" before joining the main cast in Season 4.

"This lady and I have been through a lot together as the new kids on the block of season 3," Bialik wrote. "We have cried together and laughed together and raised kids on a set together. I couldn’t have made it without her with any semblance of sanity. Thank you @themelissarauch for being you.'

Related: Kaley Cuoco gets emotional while thanking 'Big Bang Theory' fan who returned her wallet

"The Big Bang Theory" concludes on May 16 following 12 seasons and 279 episodes.

This article originally appeared on USA TODAY: 'Big Bang Theory' cast shares emotional photos from final table read