Are "Game of Thrones" casts Lena Headey and Pedro Pascal dating? The two were spotted on an outing in The Grove in Hollywood, which triggered rumors that they are hooking up.

A series of photos published on MailOnline showed the couple clearly having a good time. It's surprising that they were not mobbed by the crowd considering the "Game of Thrones" is the most watched series on TV. Pedro Pascual is part of "The Mentalist," also one of the more popular TV series around.

"The duo (was) virtually unrecognizable out of their costumes from the hit HBO show, in which they play Cersei Lannister and Oberyn Martell respectively," MailOnline said.

Lena Headey wore a thick sweater and torn jeans for the shopping spree. She also had thick rimmed prescription glasses but opted to go make-up free. Pedro Pascual, meanwhile, was simply wearing a brown shirt and a pair of denims.

The 41-year-old English actress has a four-year-old son named Wylie with her ex Peter Loughran.

According to MailOnline, "Game of Thrones" cast Pedro Pascal "was very affectionate" with Lena Headey "and placed his arms around her," which fueled the dating rumors.

But the British tabloid noted that Lena Headey has not really made secret about being close to Pedro Pascal. "The actress regularly posts pictures of the pair on her Instagram page, with some shots hinting at a romantic relationship," it said. "She recently posted an image of them looking loved-up in the street with the caption, 'Sunshine love.'"

Further lending credence to the report that "Game of Thrones" casts Lena Headey and Pedro Pascal are dating is this reply from the Chilean actor during a Reddit Q&A: "Lena is one of my favorite persons. And she is so funny and so smart, such a good person, a good friend and a good mother, I think everyone on that set and anyone who comes in contact with her develops an instant crush."