Updated

A woman who grew up in a foster care home has discovered her inseparable childhood friend was in fact her half-sister – after a 50-year search for her biological father.

Cara Jane Farrar Peterson, 52, says she finally feels like she “belongs somewhere” after discovering the blood ties with Karen Smith, 51 – thanks to the British TV program “The Jeremy Kyle Show.”

Mother-of-seven Cara, from Scarborough, has struggled to find the identity of her father, because mother Linda Powell was married six times and hospitalised with a mental disorder during Cara’s early teens.

Cara grew up in foster care with older sister Mel, whose father Michael Farrow refused to accept he was her dad.

But the truth was finally confirmed on the ITV show this week – and she was overjoyed to find Michael also had two other children, including her old school friend Karen.

Cara said: "It's just an indescribable feeling - I've missed out on so much.”

"It's been difficult and I've missed out on a lot of things with Karen.

"It's just changed who I am, I always felt like a lost soul and I finally feel like I belong somewhere."

"I just wish I could go back and have stayed close to my half-sister because I really had nothing.

Cara Jane Farrar Peterson (left) with sister Melanie Webb (right). (SWNS)

"It's like we always had a connection, even though we didn't know we were actually sisters."

Cara and Karen were inseparable at school.

GEORGIA BOY CAUGHT ON VIDEO HELPING OLDER WOMAN CLIMB STAIRS

Cara said, “I’ve always been a bit of a loner. But Karen would defend me and we always got along really well. It’s like we always had a connection, even though we didn’t know we were actually sisters.”

The pair lost touch when Cara was taken into foster care but they reconnected via Facebook in 2015 and Cara noticed a striking similarity in pictures – prompting her to believe they could be related.

A family friend managed to secure Cara's official birth certificate while compiling a family tree earlier this year and her father's name was listed as “Christopher Archer.”

More from The Sun

But she was convinced Michael Farrow, Karen’s dad and the father of her own older sister Mel, could be her real dad.

Michael, 75, had been told by her mother Linda, 74, in 1966 that he was not the father to their second child.

The couple had already had first-born Melanie Webb, 54, but Linda confessed she was having an affair at the time of conceiving Cara.

Cara and Melanie, who Cara believed was her half-sister for 52 years, ended up "in and out of" children's care homes after their mother had a mental breakdown.

But DNA results on “The Jeremy Kyle Show” revealed Michael Farrow was her dad, Melanie was her full sister and Michael's other daughter Karen was her half-sister.

Melanie (left) and Cara as young girls. See Ross Parry story RPYFAMILY; A woman was delighted to be told her inseparable childhood friend was in fact her half-sister - following a FIVE decade long search for her biological father. Cara Jane Farrar Peterson, 52, says she finally feels like she ‘belongs somewhere’ being reintroduced to her childhood friend Karen Smith, 51, as her step-sister. Mum-of-seven Cara had complications in finding her real dad because her mum was married six times and hospitalised with a mental disorder during her early teens. But 50 years late mum-of-seven Cara had finally found solace in the knowledge that her childhood best friend Karen was her half-sister after a friend created a family tree. Cara and Karen were inseparable at school, but lost touch when Cara was taken into care. However, the pair reconnected via Facebook in 2015 which spurred Cara on (© SWNS.com)

She said, "There was someone else on my birth certificate - I was 30 by the time I could get a bank account, driving licence and passport.

"No one knew who I was and in those days you needed that sort of stuff.

"DNA wasn't around was it, it was different times."

She added, "I felt like a bloody Alien or something, and that's what I would tell people."

Michael was overjoyed with the DNA result when it was revealed on the show.

Presenter Jeremy Kyle praised the Cara and Mel for their strength and the bond they share and was pleased to announce to them that they were full sisters.

Cara, who volunteers at a charity shop, said, "My mum never wanted me at all and I say I do not have a mother.

"I don't call my mother mum anymore - she's dead to me.

"I've never had an identity, I've never had a birth certificate or really known where I came from. I now know that my sister's dad is my dad and Melanie is my full sister.

"I also have a new half-brother and half-sister - my mum hid it from me all that time.

"I've missed out on a lot of things, I missed out on Karen's wedding and other family events.

"I have loads more nephews now - a family wedding is a family event and I wish I had been there.

"I just feel like after 52 years I finally know who I am - it's changed my whole life."

Click for more from The Sun.