The Oscar winner arrived at the event, which was partnered by P&O Cruises, with 22-year-old Mia, her co-star in TV drama I am Ruth - and paid her a touching tribute when she was named Leading Actress.
"I am guaranteed to be the only one of the night to cry," said a visibly emotional Kate, 47, after kissing husband Edward Abel Smith and stepping on stage to collect the award. "If I could break this statuette in half, I would give the other half to my daughter. We did this together, kiddo," she said, adding that Mia's skills on set sometimes "took my breath away".
Mother and daughter were also winners in the style stakes. While Kate turned heads in a bodycon midi dress with an asymmetric neckline by Kookaï, Mia, whose father is director Jim Threapleton, to whom Kate was married from 1998 to 2001, looked chic in a silk monochrome jumpsuit.
NIGHT OF HIGHLIGHTS
There was more good news for the pair when the Channel 4 show, in which Kate played a single mother who discovers her daughter is self-harming, also triumphed in the Single Drama category.
Presented by Rob Beckett and Romesh Ranganathan, the annual award show had a host of highlights. Strictly Come Dancing's Claudia Winkleman - reunited on the night with copresenter Tess Daly - won the Entertainment Performance award for fronting The Traitors, which also won Reality and Constructed Factual Show. A tearful Claudia, in her trademark dramatic make-up, said: "Sorry I don't know what to say... I can't get emotional because I'm wearing so much eyeliner... Thank you so much."
CROWNING ACHIEVEMENTS
Denne historien er fra May 29, 2023-utgaven av HELLO! UK.
Start din 7-dagers gratis prøveperiode på Magzter GOLD for å få tilgang til tusenvis av utvalgte premiumhistorier og 9000+ magasiner og aviser.
Allerede abonnent ? Logg på
Denne historien er fra May 29, 2023-utgaven av HELLO! UK.
Start din 7-dagers gratis prøveperiode på Magzter GOLD for å få tilgang til tusenvis av utvalgte premiumhistorier og 9000+ magasiner og aviser.
Allerede abonnent? Logg på
VEGAN VOYAGE
Starting out on a no-meat stint for Veganuary? Or are you simply looking for recipes to liven up your repertoire? These delicious plantbased dishes from Dunja Gulin are a perfect place to start
REAL LIFE ON THE 'RIVALS' SET
James Lowsley-Williams on his family's historic home, the Cotswolds estate that has starred in both Poldark and Rivals and where he grew up playing with Princes William and Harry
HARRY'S FAMILY VALUES
The Duke and Duchess of Sussex release a new image of their rarely-seen children with echoes of a famous photo of Harry with his mother
ROYAL RISING STARS
This will be a busy year for the Wales children, with increasing public appearances finely balanced with their education and family life
ELEGANT ROYAL REUNION
After a tough year, the King, Queen and Prince and Princess of Wales lead the traditional outing to church at Sandringham, where charming Princess Charlotte steals the show...
ALL THAT GLITTERS
A new exhibition at the V&A will celebrate Cartier, one of the world's most famous jewellery houses, which has been adorning royals, aristocrats and A-listers for more than 100 years
BACK IN SCOTLAND AS QUEEN OF THE CASTLE
As she returns to front The Traitors, Claudia Winkleman tells us about sourcing bespoke knitwear, using her daughter's tactics to avoid spoilers and being terrified about how viewers will react
BRINGING AN ICON TO LIFE
Timothée Chalamet on playing Bob Dylan, asking Elvis star Austin Butler for advice and why he still hasn't met the musician
A YEAR TO REMEMBER
Our round-up of 2024's fairytale weddings, bouncing babies and fond farewells.
OPPOSITES ATTRACT AT PARIS PREMIERE
A chic Tilda Swinton and Julianne Moore celebrate their new film - and the close friendship it helped them form