Michelle Keegan has shared a photo of her lookalike cousin Katie Fearnehough.
Michelle, who stars in BBC's Our Girl, posted the picture to her four million followers on Instagram.
Michelle captioned the post: "It's a family thing."
It's a family thing.
Fans rushed to comment on how much they look alike.
One asked: "Is that your sister?"
A second said: "Double trouble xx."
A third commented: "Seeing double, stunning."
Katie works for the styling team for the Manchester-based global fashion brand Pretty Little Thing.
Michelle, who is married to Mark Wright, recently confirmed she has finished filming the new series of BBC 1's Our Girl.
The 32-year-old actress, who stars as Sergeant Georgie Lane, shared an off-duty snap of herself and two of her co-stars last month.
Alongside an image of her onscreen mum and sister, the former Coronation Street star admitted shooting was done.
Michelle is seen flashing a peace sign next to Linzey Cocker, who plays her sister Marie Lane, and Angela Lonsdale, who portrays their mum Grace Lane.
She wrote: "Momma and Sis wrapped on #OurGirl #thelanes #ourgirl4."
The new series of Our Girl sees Georgie confront painful memories in Afghanistan, but the show is usually filmed in South Africa and Malaysia. Some scenes are filmed in Michelle's hometown of Manchester.
New faces joining the cast include former Hollyoaks star Nico Mirallegro, and ex-EastEnders actor Danny-Boy Hatchard who will be playing Private Rhett 'Cheese' Charlton.
Series four finds Georgie living back in Manchester with her family and in a more positive place. Now a Sergeant, she's training a bunch of medics and decides not to join her friends in 2 Section on their upcoming deployment to Afghanistan.
But that decision comes into question when a night on the town results in a near-fatal accident, helping Georgie come to realise that the painful memories of losing her fiancé Elvis to a Taliban attack are behind her decision not to return to Afghanistan.
Ultimately, she realises she must go back and face her own fears.
Before Our Girl hits the screens, Michelle can be seen in upcoming comedy Brassic.
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