Game of Thrones
Co-executive producer George R.R. Martin arrives for the season premiere of HBO's "Game of Thrones" in San Francisco, California March 23, 2015. Reuters/Robert Galbraith

A character who was previously presumed dead may return in “Game of Thrones” Season 6. The actor playing an important role is said to have been spotted in Belfast, where filming of the TV series is taking place, and this has prompted speculation of his return.

[Spoiler alert]

Cast member Rory McCann (Sandor ‘The Hound’ Clegane) has been spotted in Belfast, WatchersOnTheWall reports. Arya Stark (Maisie Williams) had previously left a wounded Sandor to die after his battle with Brienne of Tarth (Gwendoline Christie).

The spotting of McCann in the same hotel that is used by the HBO crew and the cast members of the show has led to speculation that the Hound is not dead. The actor apparently has no other projects that he is filming in Belfast and the report points to a popular theory by the fans about how Sandor could have been saved.

Hints about the character being alive can be found in “A Song of Ice and Fire” book series, on which the TV series is based. Some of the passages that hint at the character’s return have been compiled by WinterIsComing. The producers, however, have so far not confirmed that McCann will be back in “Game of Thrones” Season 6.

One character that may be seen in the next season is Septon Meribald. In the books, the character takes Brienne to the Quiet Isle. The Elder Brother there tells them about the death of the Hound, but there is a hint of Sandor being alive when the Elder Brother talks about his personal journey to the Quiet Isle and how this was his “second life.”

The popular fan theory is that Sandor went through the same sort of rebirth as the Elder Brother. The most telling scene from the books that support this theory is about a “novice” character, who was bigger than Brienne, digging a grave. The Hound is bigger than Brienne and would be a new comer to the Quiet Isle.

The report stated that the author George R.R. Martin may have teased Sandor’s return when he showed the character scratching a dog’s ear on the field. The House Clegane sigil is three black dogs on a yellow background. The possible return of Sandor in “Game of Thrones” Season 6 will confirm this theory for the fans of the book.