Tom Hiddleston is dating fellow Marvel star Elizabeth Olsen

Actor Tom Hiddleston has fuelled rumours that he is dating his Avengers: Age of Ultron castmate Elizabeth Olsen after the pair were spotted having a date night.

The 34-year-old actor, who played Loki in Avengers: Age of Ultron, was seen with Olsen, 26, at The Wolseley restaurant in London, reported Ace Showbiz. Their appearance together in public fuelled dating rumours which have been swirling since May. The two were photographed sitting side by side in a cab.

Olsen looked chic in a black outfit while she put her hair in a ponytail. Meanwhile, Hiddleston looked relaxed in a white T-shirt topped with black blazer. They were seen trying to avoid paparazzi who attempted to take their pictures.

Earlier in the week, Hiddleston and Olsen were spotted walking down the street together in Oxford on July 21. Two days later, they took a taxi together to attend Bradley Cooper's West End production of The Elephant Man.

Both Olsen and Hiddleston star in Hank Williams biopic I Saw the Light. Olsen plays the late musician's wife Audrey Mae with Hiddleston plays the Alabama country music crooner. The biopic's release date is yet to be confirmed.