He's the handsome young actor tipped to be the next James Bond who has just formed one of the world's hottest celebrity couples thanks to his marriage to Dua Lipa.

Callum Turner has repeatedly given credit to his 'best friend' mother who, as a single parent, despite living on a tough London council estate, had the grit to give him the upbringing that set him on the path to global success.

But little has ever been publicly known about the father who walked out on them both when Callum, 36, was just a toddler – until today.

Now, the Daily Mail can tell for the first time the full, extraordinary story of Callum's family – and reveal how he has a 'mini-me' brother and sister that fans know nothing about.

But first we need to roll the clock back to his birth in London on February 15, 1990.

Callum's mother, Rosemary Turner, now 70, as he has told so many times, is now an award-winning psychotherapist and female role model. When she was younger, working as a club promoter, she was the bohemian queen of London’s underground party scene.

At the time, his little known father, we can reveal, was Rosemary's younger boyfriend, a plasterer from Hammersmith named Laurence Coles, known to friends as Larry, who also loved the city's nightlife.

It's unclear how long Rosemary and Larry were together, or if they ever even co-habited, but they certainly didn't marry, and at Callum's birth his mother gave him her surname. 

On Callum's birth certificate it states that his mother and father were living at separate addresses at the time.

Whatever happened between the couple thereafter though, the relationship quickly ended and Rosemary was left to look after their very young son in a council flat on the World's End estate in Chelsea.

Money was so tight that Callum couldn't afford match tickets to watch his beloved Chelsea play at the nearby Stamford Bridge stadium, so he'd stay in on Saturday afternoons, throw open the windows and listen to the roars from the crowd.

He first wanted to be a soldier, then dreamed of becoming a professional footballer and playing for Chelsea.

Meanwhile, Rosemary juggled being a single mother with jobs as a promoter on the door of various venues across London's then vibrant nightclub scene, including the legendary Ministry of Sound.

She couldn't rely on any support from Callum's father because he had moved to the other side of the world to begin a new life in Australia.

Callum would later tell how instead of a conventional father figure, he had the role fulfilled by a revolving cast of often gay men who Rosemary befriended in the club world.   

The famous clubland figure Steve Strange – of 1980s Visage's Fade to Grey fame – lived with Rosemary and young Callum for a spell.

Meanwhile, far away from the UK, Larry was reinventing himself in Sydney.

Despite a non-academic background – having previously worked as a plasterer in London's building trade – he qualified there as a psychotherapist.

He began dating business owner Petrina Angus, who runs a high-end company making cushions from Irish linen.

It's unclear how much Larry kept in touch with his son during this period – Callum has only described his childhood relationship with his father living 10,000 miles away as 'loose'.

But it was his father's next act that would be most impactful: now in a serious relationship with Petrina, Larry started a second family.

In the mid-1990s, the couple had two children, Louis and Clemmie, younger half-siblings to Callum.

Yet instead of cementing Callum's separateness from his father as might have been expected, the birth of the two children seems to have begun the process of bringing them closer together.

The three siblings met up regularly during their childhoods and teens, often on visits to London. 

And Callum's big brother influence is plain to see in both: Louis is football mad and, like his half-sibling, a Chelsea fan, while Clemmie has followed him into an acting career.

Now based in London, she trained at the prestigious Central School of Speech and Drama in London in 2019.

But the single biggest factor in finally bringing father and son closer together as adults has been Larry's return to the UK, after almost three decades Down Under.

Larry, now 66 and once again single, lives in a period flat in a smart garden square in fashionable Hastings on the east Sussex coast, from where he practices his therapy.

Friends locally know Larry as a 'lovely chilled out bloke' who is now in regular contact with the son he once saw only occasionally on long-haul trips. And he is, they say, unashamedly proud of Callum.

One told us: 'I know about Callum because Larry's mentioned him a few times. He seems to be quite proud of him, but I don't know how close they are.

'Larry's gone up to London a few times to visit Callum, but I've never seen Callum with him. Larry is a lovely, chilled-out bloke who will do anything for anyone, a heart of gold.'

Larry even hosted all three of his children – together with his oldest son's now wife, Dua Lipa – for a pub Christmas dinner last December.

And Louis and Clemmie attended Callum's spectacular Sicilian wedding – with Clemmie's inner circle status confirmed by her also being invited to Dua's hen do.

Larry is believed to have been invited, although the Daily Mail has been unable to verify his attendance.

Clemmie was duly pictured partying at the pre-wedding girls' weekend in Ibiza in May – after previously joining Dua and Callum on a group trip to Paris in early spring.

Meanwhile, Louis and his sister were spotted on a big friends' trip to Ibiza with Dua and Callum last year.

Callum has also previously taken various holidays with his half-siblings, including trips to Tokyo and Rome.

Larry has also frequently shared both family photos and film posters of his once semi-estranged son, as well as videos of his new popstar daughter-in-law performing onstage.

Rosemary, meanwhile, has lately been more widely recognised, partly as a result of Callum bigging her up in interviews, but also for her achievements professionally.

Because, in a curious echo of her old ex-boyfriend's life journey, she too finally gave up the party lifestyle to become a psychotherapist.

She founded her own company, Counselling for Life, four years ago, and it was in this context that she won an award at last year's Global Women's Summit.

Callum started dating his now wife Dua after meeting in January 2024 at a party in Los Angeles – and the pair are now officially married as of May following a civil ceremony.

They first had a legal wedding at Old Marylebone Town Hall in west London before jetting off to Sicily for a star-studded, three-day ceremony with some 200 guests, in Palermo, which was rumoured to cost £1.5million.

In London, Dua was given away by her father Dukagjin, who also acts as her manager, while Callum's beloved mother Rosemary was also handed a 'special' role at the weddings.

The wedding only lasted between 30 and 40 minutes, and Callum grinned boyishly as he held his new wife's hand as they walked down the steps of the register office as confetti rained down.

Dua and Callum were cheered by close family before being whisked off in the back of a black cab. 

Ahead of their main ceremony in Sicily, insiders hailed the couple's nuptials as the 'showbiz wedding of the year' – and said they expect the couple to start a family soon.

Following his breakthrough role in a 2015 BBC production of War And Peace, Callum's acting career has gone from strength to strength, through parts in the Fantastic Beasts series, Emma and Spielberg's Second World War drama Masters Of The Air.

Now, he is increasingly being offered his pick of top film roles. Indeed, he is making such waves professionally that he has become the bookies' favourite to be the next James Bond, overtaking previous frontrunners, Aaron Taylor-Johnson, James Norton and Idris Elba.

Callum is taking such strides with the full support of his family – which turns out to be much larger and more complicated than his fans ever realised. 

But it's clearly a happy one.