We've seen a lot of famous faces cropping up in Game of Thrones over the years.
And who can blame them?
This hugely successful show has gone from strength to strength, and millions of fans have been eager to see what will happen in the final season.
But it wasn't just the show's much-loved original characters that fans were talking about after watching Sunday night's episode.
It was also a particular celebrity cameo that caught their eyes. And what happened to one of his during the episode!
Warning: The scene in question is not for the faint-hearted.
We even spotted another celebrity cameo appearance! Keep on reading to find out who it was.
Plus our ingenious prediction for the next celebrity to star in the show!
Just wait till you see who we think will be next.
Nobody could have predicted just how popular Game Of Thrones would turn out to be.
So, it comes as no surprise that celebrities are queuing up to star in this hit show.
For some reason, musicians seem to feature highly.
Here are some more musicians at another wedding.
And for fans of pub rock.Wilko Johnson from the British rock band, Dr. Feelgood, starred as the mute executioner in Season One and Two. Even without saying a word, this dude seriously rocked the role.
Continuing the rock theme, Gary Lightbody from Snow Patrol also managed to show off his singing credentials in Season Four.This famous musician can be spotted singing "The Bear and the Maiden Fair" whilst leading Roose Bolton's men to Harrenhal.
But if heavy metal is more your scene, then check out Season Five.
You probably remember seeing the actor and musician Joel Fry in Season Four and Five as former slave trader, Hizdahr zo Loraq.
And YouTube comedian Steve Love also got the much-coveted call from the GoT producers.If you are familiar with Steve, you will know that he is known for his uncanny impressions of Jon Snow, among other characters, and in fact, producers were so impressed that they offered him a cameo role in Season Six.
The UK's tallest man also appeared on the show.
And just because they can.Show creator's David Benioff and D. B Weiss made cameo appearances in Season Five in the ultra creepy House of Black's Hall of Faces.
Benioff did not stop at a cameo role for himself.
Director Neil Marshall also couldn't resist making an appearance.
Talking of faces or heads in this case.Do you recall seeing George W. Bush in Season One? Well, not actually Bush himself but a severed head that bore a very strong resemblance to the former president. Brilliant!
They've had a few famous animals too.Including the Bart the Bear II who was so impressive, you may be forgiven for thinking he was a CGI creation. This was not the case, Bart is actually a seasoned actor who has appeared in many box office hits including Into the Wild, Evan Almighty and We Bought a Zoo. Now that's one impressive resume.
And of course, the most famous cameo to date; Ed Sheeran.
As we start Season Eight, the latest celebrity cameos have been spotted.
It was Rob McElhenney.
McElhenney even invited them to guest star in it.
Oh hey https://t.co/AC5ahW4k3S— osha (@osha)1484351113.0
McElhenney has also appeared in the hit show Lost.
Rob Mcelhenney played Aldo in two episodes on the show LOST http://t.co/VKHzH9li05— Charlie Kelly (@Charlie Kelly)1411420395.0