Millie Gibson slips into a plunging red mini dress for her birthday weekend

She will make her debut later this year as The Doctor’s newest companion.

And Millie Gibson certainly got hearts racing in a plunging red satin minidress when she shared a gallery of Instagram snaps from her fun birthday weekend on Tuesday.

The former Coronation Street star, 19, who is about to board the TARDIS as companion Ruby Sunday, slipped into the gorgeous gown as she enjoyed a swanky Italian dinner.

Millie also shared snaps from her trip to Sketch in Mayfair, before heading to Build-A-Bear to pick up a plushie to match her own quirky sense of style.

The actress also stunned in a gorgeous white mini dress as she enjoyed afternoon tea overlooking the city of London.

Here she is! The Coronation Street star who boards the TARDIS as companion Ruby Sunday slipped into the gorgeous gown as she enjoyed a swanky Italian dinner

Having fun? The actress also stunned in a stunning white mini dress as she enjoyed afternoon tea overlooking the city of Cardiff

Millie also shared a dazzling video, dressed in her tight red dress as she walked down the street to her birthday meal.

Her message was titled “Birthday Weekend.”

It comes after Millie was labeled a ‘diva’ by the cast and crew of Dr Who after struggling with night shots since filming began in Cardiff last month.

The actress will star alongside Ncuti Gatwa and Jonathan Groff in the forthcoming series of the BBC cult sci-fi series, which turns 60 this year.

Despite throwing herself into the project, Millie’s attitude to movie times reportedly didn’t go down well with the team working on the show.

A source told The Mirror: “Nobody can question Millie’s commitment to Doctor Who, but there’s a lot of pressure that comes with a role like this.

“She is determined to do well. But the days are long and sometimes, when night shots have been suggested, she has made her feelings clear.

Millie is a professional on set and while night shots are part of the job, they can be exhausting even for the most experienced actors.

Lavish: Millie shared a glimpse of the restaurant’s picturesque decor as she enjoyed the posh dinner celebrating her 19th birthday

Funky: Millie also shared snaps from her trip to Sketch in Mayfair, sporting a 90s-inspired look consisting of a pink tee and blue bucket hat

Cute! She also shared a photo of her fuzzy pink companion after visiting Build-A-Bear

She won’t be the first or the last to get a little annoyed with a late-night shoot, but it has earned her some biting comments behind the scenes. The word ‘diva’ has been used once or twice when tempers fray.’

MailOnline has contacted Millie’s representatives and the BBC for comment.

The blonde beauty is set to join the long-running show as character Ruby, who acts as the new Doctor Ncuti Gatwa’s companion.

In December, she was revealed to have landed the role, with the news announced during Children In Need’s annual telethon.

Doctor Who will return in November 2023 with three special episodes to coincide with the show’s 60th anniversary, starring David Tennant as the fourteenth Doctor.

The Fifteenth Doctor, played by Ncuti, will then take control of the TARDIS, with its first episode airing during the festive period next year.

In a statement, the star said the new role is a “dream come true” as the long-awaited secret was finally revealed, much to the delight of fans.

“Although I am still in disbelief, I am beyond honored to be cast as the Doctor’s Companion,” Millie said in the BBC’s statement.

“It’s a gift of a role, and a dream come true, and I’ll do everything I can to try and fill the boots the traveling companions have traveled in before me.”

She added, “And what better way to do that than to be at the side of the fantastic Ncuti Gatwa, I just can’t wait to get started.”

Doctor Who will air on the BBC in the UK and Ireland and streaming platform Disney+ will show episodes to the public elsewhere.

Coming soon: Millie will join Ncuti Gatwa as companion Ruby Sunday in the new series of Doctor Who, launching later this year

EastEnders legend Anita Dobson, 73, also stars in the series, playing Mrs Flood, the elderly neighbor of The Doctor’s companion Ruby.

Anita recently dropped the name of her Doctor Who character and what her role will entail while speaking exclusively to MailOnline.

While attending the ICON Awards in support of Prostate Cancer Charity in February, she gushed about playing Mrs. Flood, the elderly neighbor of Millie’s Ruby Sunday.

She brushed off talk of starring in the show, admitting, “I wouldn’t say starring, I think the Lord himself, Ncuti and Millie are starring, I’m just joining the ranks by.

The star-studded cast for the upcoming series will also include two-time RuPaul’s Drag Race winner Jinkx Monsoon.

The actor – who uses the pronouns she/she – will portray the new villain in the BBC science fiction TV series.