John Simm, 52, and his wife Kate Magowan, 47, have only ever released one wedding photo throughout their almost two-decade marriage.
The Grace actor, who plays DSI Roy Grace, and the EastEnders actress exchanged vows in the Forest of Dean, Gloucestershire in April 2004, but they have remained largely private about their relationship with John describing media interest in his life as "excruciating."
However, Kate has revealed her stunning strapless satin bridal gown in a rare photo of her father walking her down the aisle to mark Father's Day on several occasions. "Me and my Daddy. Just before I got married," she wrote next to one post, which showed their sweet father-daughter bonding moment.
Kate could be seen in a corset top with subtle embellishments, and she finished off her A-line dress with a long veil secured into her updo. In her right hand, she held a bouquet of white, purple and blue flowers while she looped her left hand through her dad's arm.
Fans showered her with comments, with one writing: "Thought this was Kate Middleton," and another adding: "I'm certain this girl was in a Bond movie." A third similarly remarked of her fairytale wedding photo: "Such a beautiful wedding, such a beautiful bride, look how proud your daddy lookst."
John and Kate began dating in 2000, with Kate sharing a rare anecdote about the start of their relationship on Instagram. She held up a black and white Polaroid of the pair getting cosy for a photo, as they pulled the same pose 20 years later. "In Feb 2000, this young man I’d met and kinda liked took me to Dublin for Valentine's Day.
"20 years, a marriage and two children later, here we are... how I love you my partner in crime @johnsimmofficial delicious food to celebrate tonight at @odettesrestaurant with #Bryn and the team. Here’s to another 20 years," Kate captioned the snap.
They starred alongside one another in the movie Is Harry On The Boat?, which was released in 2001, before getting married. Following their wedding, John and Kate welcomed two children, a son called Ryder and a daughter called Mollie.
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