Being an actor in Game of Thrones is probably a lot of fun – hanging out with some of the biggest names in the industry while running around in fancy cosplay and hearing spoilers well in advance.

But there's a downside. Actors in the show are apparently not allowed to audition for similar shows, because producers want to avoid any and all association. Bit difficult when nearly every British actor going has popped up in Westeros, but hey ho.

Related: Everything you need to know about GoT season eight

Actor Ian Beattie was speaking at MCM Comic-Con Birmingham, where he said: "It's quite unusual because there was another show, that I'd rather not name if you don't mind, which was auditioning.

This content is imported from YouTube. You may be able to find the same content in another format, or you may be able to find more information, at their web site.

We earn a commission for products purchased through some links in this article.

"It's based on a video game and I can't remember if Amazon or Netflix were doing it. But at the bottom of the casting call: 'No Game of Thrones actors'.

"And that's not the first time that's happened. And I'm thinking, there's some pretty bloody good actors in Game of Thrones. What the heck? But they did not want any form of brand recognition. That's to do with the identity of the show. This is obviously a show that sees itself as a Game of Thrones-type show.

"It isn't out yet, it's being made I think as we speak. So they obviously don't want any crossover whatsoever, which is fair enough. I won't be watching it, but OK."

This content is imported from YouTube. You may be able to find the same content in another format, or you may be able to find more information, at their web site.

Hmmm, a Game of Thrones-esque show that's based on a video game being made by Amazon or Netflix. What could it be?!

Okay, it's probably The Witcher – unless Amazon have an adaptation of Knack II up their sleeve that they haven't announced yet.

Beattie, who played nasty pasty Ser Meryn Trant, also reiterated the Thrones cast won't appear in the prequel, and discussed that he got quite annoyed at a cast member for dropping a big spoiler.

Game of Thrones season 8 will premiere on April 14, 2019. The show airs on HBO in the US and Sky Atlantic and NOW TV in the UK. Season 7 is now available to buy on DVD, Blu-ray or digital download.

Want up-to-the-minute entertainment news and features? Just hit 'Like' on our Digital Spy Facebook page and 'Follow' on our @digitalspy Instagram and Twitter account.

This content is created and maintained by a third party, and imported onto this page to help users provide their email addresses. You may be able to find more information about this and similar content at piano.io