The 29-year-old looked sensational as she stepped out for The Championships at Wimbledon in London this afternoon.
Making the most of the good weather, the Game of Thrones star, who plays the role of Missandei in the HBO series, donned a red and white patterned dress.
Proving she knew how to rock a summertime chic look, the actress teamed the flowery get-up with a pair of cream pumps – which had been adorned with a floral pattern.
Nathalie accessorised her look with a straw cross body bag, a silver pendant and choker necklace.
The former Hollyoaks regular, who was being hosted by Stella Artois at the star-studded venue, offered a soft smile as she posed for the camera.
Nathalie, who was born in Southend-on-Sea, Essex, sat beside actor Alex Lanipekun for the event.
The 37-year-old looked very stylish as he sported a patterned blue shirt and blue trousers for the game.
The duo could be seen chatting as they sat in the stands for the tennis match.
In one capture, Nathalie looked overjoyed as she watched the game.
Her appearance came hours after Nathalie treated her 2.9 million Instagram followers to a glimpse at her day at the Hampton Court Flower show.
The actress shared a series of photos from The Royal Horticultural Society’s annual event, which showed a range of the flora which was on display.
Fans rushed to comment on the upload, with one penning: “They look beautiful.”
Another person swooned: “Wow! Great post!”
“The flowers are very beautiful, just like you,” gushed a very impressed fan.
A fourth penned: “I’m a sucker for crazy flowers! These are so beautiful!”
The 34-year-old, who is pregnant with her first child, opted for a summery ensemble as she donned a white midi dress.
She teamed the ensemble with a pair of blue and cream wedge heels, a beige hat and a straw clutch bag.
Meanwhile, James, 42, put on a very dapper display as he donned a navy blue suit and matching tie.
The former professional racing driver shaded his eyes from the sun with a pair of sunglasses as he watched the game on Centre Court.