Young Sheldon star Emily Osment has confirmed her character's mum will return for the show's final season.

The Big Bang Theory spinoff prequel on Sheldon Cooper is ending with its upcoming seventh season, also marking the return of Mandy McAllister (played by Osment) and Mandy's mum Audrey, portrayed by The Good Doctor's Rachel Bay Jones.

Osment posted a since-expired picture of her and Jones hanging out on set to her Instagram Stories with the caption "working our butts off".

rachel bay jones, emily osment, will sasso, young sheldon
CBS//Getty Images

Related: Young Sheldon's season 6 finale calls back to Big Bang Theory moment

Jones first joined Young Sheldon during its sixth season together with Will Sasso, who plays Mandy's father Jim, though there's no word as to whether Sasso will also make an appearance in the new batch of episodes.

Meanwhile, the new season will feature Mckenna Grace and Wyatt McClure, returning in their respective roles of Paige Swanson and Billy Sparks for the grand finale.

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Young Sheldon is led by Iain Armitage, who plays the younger version of the character portrayed by Jim Parsons on TBBT. Commenting on the spinoff coming to an end, Armitage looked back on his first days on set by posting a sweet snap with co-stars Raegan Revord and Montana Jordan.

iain armitage, young sheldon
CBS

Related: New Big Bang Theory spinoff in the works

"In case you wondered, I love my family," he wrote on Instagram last November.

"There's about 200 more people who make @youngsheldoncbs happen and I'm grateful for each of them. We will make the best 7th season we can possibly make - and behind the scenes there will be lots of laughter and lots of tears because I love all of these people so much."

Young Sheldon airs on CBS in the US, and is also shown in the UK on E4. You can buy The Big Bang Theory complete boxset now on DVDand Blu-ray.

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Reporter, Digital Spy

Stefania is a freelance writer specialising in TV and movies. After graduating from City University, London, she covered LGBTQ+ news and pursued a career in entertainment journalism, with her work appearing in outlets including Little White Lies, The Skinny, Radio Times and Digital Spy

Her beats are horror films and period dramas, especially if fronted by queer women. She can argue why Scream is the best slasher in four languages (and a half).