The Scotland shoot of the "Avengers: Infinity War" is again adding two more star cast in Chris Hemsworth and Mark Ruffalo as both Thor and Hulk are spotted in the country. This will mark the first time that the two characters are on Earth since "Avengers: Age of Ultron."

According to a report from ComicBook, the two actors was spotted by a local female fan in Edinburgh and took a selfie with the duo. The fan posted the picture on Twitter and said it was the best moment of her life.

The report said it's currently unknown how long has Hemsworth and Ruffalo been in Scotland already. The two actors join the Scarlet Witch Elizabeth Olsen, Captain America Chris Evans, The Vision Paul Bethany, and Anthony Mackie, who plays The Falcon.

Thor and the Hulk's presence indicate that the two characters will be back on Earth. This will be the first time they will be back on the planet since the "Age of Ultron" movie. Thor and Hulk were also in different worlds when they make their appearance on "Thor: Ragnarok," which the report said might explain how the two goes back to Earth at the end of the movie.

ScreenRant reports that the appearance of Ruffalo in the set also indicates that the scenes shot in Edinburgh, Scotland are not where all of them will be fighting together. Ruffalo does not typically do any set work as the Hulk.

This could likely show a scene where the team is somewhat strategizing on what they could do next. The report adds that Scarlett Johansson's Black Widow and Benedict Cumberbatch's Doctor Strange will also be part of the scenes in Scotland, but the two have yet to be seen on set. Check out the video below that indicated production for "Avengers: Infinity War" has already begun.