Tom Hiddleston looked unrecognizable as he was seen out and about with a brunette in the streets of London on Wednesday, October 3. The 37-year-old actor is reportedly single and not in a relationship since his breakup with Taylor Swift 2016. So who is that mystery woman?

Hiddleston left his clean-shaven look and opted for a more rugged style with long scruffy, wild curls, and a full beard. The actor, famously known as Loki from the Marvel movies, displayed his goatee and mustache while holding his coffee and walking on the street with an unknown woman. Did he change his look for her?

According to Hollywood Life, Hiddleston donned an all-black outfit while he was and about. He wore a dark-colored coat, shirt, pants, and even shoes. The woman he was with, on the other hand, wore a red-colored shirt, black denim jacket, Capri leggings, and sneakers, while they walked her dog.

Hiddleston and the mystery brunette looked relaxed as they casually talked. In one point, the "The Avengers" actor touched the puppy. The two did not reveal any signs of PDA, so there were theories that they were just friends.

So is Hiddleston still single? The "Thor" star famously dated Swift for three months in the summer of 2016. They later called it quits and went on their separate ways, Daily Mail Online noted.

They first met at the Met Gala in New York in May of the said year. Hiddleston and Swift were spotted enjoying a nice talk and even danced together. At the time, the 28-year-old pop singer was still with Calvin Harris.

Harris and Swift broke up after 15 months of a relationship. According to reports, she left to be with Hiddleston. Their romance got immediately serious.

They met each other's parents, traveled around the world together, and displayed major PDA trips to Italy, Australia, and the U.K. But, it all ended in September 2016 before the Emmys took place in Los Angeles.

People expected to see them walk the red carpet together, but it never happened. "Tom wanted the relationship to be more public than she was comfortable with," a source said as a reason of Swift and Hiddleston's split.

Since then, Hiddleston remains tight-lip about his romance and even his personal life. He does not have any social media accounts to tell fans what he is up to. So it looks like his followers have to wait for his actions and outings to see if the mystery brunette is his new girlfriend.