The casting call has also revealed some small spoilers.
The producers of
Game of Thrones are looking for a number of characters to join the show at the end of the year.
According to fan site
Watchers On The Wall, the show is looking for actors to play three northern characters
A northern farmer is needed who has to be aged 25 – 35. They are described as a "straightforward honest man of simple tastes who works on the land".
The second is a "sassy and attractive girl"
aged 18 – 25. The character is described as "sexy and confident" and featuring in a memorable scene part in one episode, opposite a lead cast member.
Finally they on the lookout for a northern sentry
aged 18 – 25. They need a "young Northern actor with great timing" to play a small part opposite leading cast.
Obviously, it's not a lot to go on in terms of spoilers, but they are also looking for a "mercenary". That character is "authoritative, fit, cool and charismatic military type" and will need to be "able to ride a horse", so based on the last season it is a good assumption will be linked to Euron Greyjoy in some way or another.
Take that as you will.
