Actor Kristian Nairn has revealed he really likes Ed Sheeran - unless he's doing a cameo on Game of Thrones, in which case he thinks it's all a bit stupid.

It's a stinging criticism of Suffolk's singing prince: Hodor from Game of Thrones has shared his thoughts about Ed Sheeran's performance in Game of Thrones.

Kristian Nairn, who played GOT's gentle giant, was quite literally monosyllabic (the reason why his vocabulary was stunted to just one word was explained in the fifth episode of GOT but I know better than to offer any spoilers because GOT fans are RABID) and his final scenes involved some zombies, a door and a heartbreaking revelation.

But we're slightly less teary-eyed now he's taken a pop at the king of pop.

'I'm not a fan of the cameos in Game of Thrones. I don't like them. I think it's stupid. I don't mind going on the record on that. I just think it takes you right out of the world,' he said, of guest stars who have included Gary Lightbody from Snow Patrol, Sigur Ros and Coldplay drummer Will Champion.

But he saved his most vicious cameo vitriol for Sheeran: 'I was like 'why is Ed Sheeran here?' I mean, Ed Sheeran's great. He's a great guy, great musician, but why is he in Game of Thrones? It's a fantasy show. We're all caught in this amazing world and spend so much time and money and talent to create, and all of a sudden, there's a pop star. What?'

Ed's cameo last year involved him playing a Lannister soldier during a brief scene in the seventh series with Maisie Williams, who played Arya Stark. In the episode, entitled Dragonstone, Arya comes across a group of Lannister soldiers enjoying a sing-song around a campfire having killed the Frey men who took part in her mother and brother's murder at the Red Wedding.

At the time, Ed said: ''I sing a song and then she goes, 'Oh, that's a nice song,' and I go, 'It's a new one',' he said.

Sheeran and his party offer Arya food and wine around a campfire before the youngest Stark daughter begins her journey to King's Landing with the intention of killing Cersei. David Benioff and DB Weiss, the series' screen writers, told the South by Southwest Film Festival they had convinced Ed to appear after discovering Williams was a superfan.

The song, Hands Of Gold, during his appearance, which was taken from George R. R. Martin's original books.

But criticisms such as Kristian's didn't put The Simpsons off recruiting Ed to take a cameo in the cartoon show when he found himself caught up in a love triangle with Lisa Simpson – the last time this happened he wrote a song about it, Don't, which got to number one.

'If you date a songwriter, be prepared to have songs written about you,' Ed said. What if you criticise a cameo in GOT? Will Ed write a song about that?