Isaac Hempstead Wright
Cast member Isaac Hempstead Wright attends the premiere for the sixth season of HBO's "Game of Thrones" in Los Angeles April 10, 2016. Reuters/Phil McCarten

The delay in the start of “Game of Thrones” Season 7 production has got cast member Isaac Hemstead Wright a little worried. The actor revealed recently that it was a “terrifying” prospect to film in the winter.

Wright plays the role of Bran Stark in the TV series and the character is currently North of The Wall. The region is perhaps the coldest place in all of Westeros. For the previous seasons the crew used artificial snow and CGI to get the winter effect, but this time they will be filming in the winter weather.

Wright told IGN that it feels “weird” to be starting the production later. Usually the actors would all be in Belfast in August to film their relevant scenes. The actor said that it is “slightly terrifying” to be filming in the winter because it will be “even colder” on the set.

One of the filming locations for “Game of Thrones” Season 7 is Iceland. HBO had previously announced that the production will still be based in Northern Ireland and some of the cast and crew will be returning to Spain. Locations for shooting in Spain will include Sevilla, Caceres, Almodovar del Rio, Santiponce, Zumaia and Bermeo.

Traditionally the production crew is divided into two units. The Dragon unit and the Wolf unit. Both these units film scenes at different locations simultaneously. The four confirmed directors for the next season are Mark Mylod, Jeremy Podeswa, Matt Shakman and Alan Taylor.

One of the most highly speculated event in “Game of Thrones” Season 7 is The Wall falling. The invasion of the White Walkers has been teased from the premiere episode of the very first season of the show. Meanwhile, the war in Westeros continues with the major Houses forming alliances in order to get revenge or retain power.