The 48 year old first starred on the soap as Sam back in 2001, when she took over from Danniella Westbrook, but she then left EastEnders in 2005.
Earlier this year it was revealed that Sam was on her way back to Walford, with Kim taking over the role once again.
It’s safe to say Sam has made her presence known over recent weeks, and she’s already started meddling in other Albert Square residents’ business and dramas.
As we welcome Kim back to our screens, here we take a look into her life away from the cameras…
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Kim originally hails from Bromley in south east London, and she has a law degree from Bristol University.
Before finding fame, she worked as an account manager selling soap powder for a pharmaceutical company.
After taking a speech and acting course, Kim fell in love with acting and in 2001 she appeared in the musical One Touch of Venus, before going on to audition for the role of Sam in EastEnders.
Alongside EastEnders, she’s also starred in numerous theatre shows including Cabaret, Hay Fever and The Play What I Wrote.
In 2008, Kim starred in an episode of ITV1 show The Fixer, before going on to play a lead role in ITV1 primetime series Harley Street. She’s also appeared in BBC One drama Missing and BBC Two show Collateral, and she returned to the stage in 2015 in a production of Gatsby.
The 48 year old is also a talented mezzo-soprano, and has showcased her skills on numerous occasions, including during the EastEnders Christmas Party TV special.
Away from work, Kim is married to a man named Simon, who stays entirely out of the spotlight.
The couple share two children together, but not much else is known about their family life, with Kim opting to keep her loved ones out of the limelight.
The star opened up about her EastEnders return earlier this year, revealing that she was “thrilled” when BBC bosses asked her to come back.
“I was so thrilled and it didn’t take me long to say yes. I was at home when I got the call and it really was a lovely surprise. I’ve been watching the show when I can, so I was really genuinely thrilled to be asked back,” she said.
Kim continued, opening up about her co-stars and the late Barbara Windsor, who portrayed her on-screen mum, Peggy Mitchell. She said: “It’s so wonderful to still have some of my on-screen family, including Steve [McFadden] and Perry [Fenwick].
“I have to say, though, it’s very sad not to have the incredible Dame Barbara Windsor, who played my on-screen mum, here. There’s a big hole in the Mitchell family where Peggy should be and we all miss her very much. She was an icon in front of and behind the camera.”
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