Supernatural” has long been known for its popular culture references. This has especially been the case with the names that Sam and Dean Winchester use when they disguise themselves as federal agents. Most of the time, the names are taken from bands and artists using very real surnames. That’s not the case this week, as the Winchesters decided to take inspiration from the popular TV show “Game of Thrones.”

Check out the ‘Supernatural’ season 12, episode 18 sneak peek

The CW has released a sneak peek for the upcoming episode of “Supernatural.” In it, Sam and Dean introduce themselves as Agents Stark and Martell, making it very clear that they are “Game of Thrones” fans.

The innocent victim shows no sign of recollection for the names, but that doesn’t mean the boy isn’t a “Game of Thrones” fan. It could be that he isn’t in the right state of mind to click on the names, as he is smoking pot at the time.

Fans couldn’t help but take to the comments on the YouTube video about the names. Some fans haven’t seen “Game of Thrones” and were interested in where they come from, knowing that they are from popular culture.

Not the first ever ‘Game of Thrones’ reference

This is definitely not the first time the TV show has focused on “Game of Thrones.” Back in 2013, there were two episodes in a row that made a reference to the show. While some publications commented that it made “Supernatural” look insecure, really it’s just a nod towards excellent shows that the writers enjoy.

The first reference was while Dean, Sam, and Charlie watched the show in the Men of Letters bunker. Dean turned the show off, commenting about the main bad guy at the time—Joffrey. It would be interesting to know what he thought of Ramsey Bolton. The second reference was a range of stuffed animals dressed up as characters from the show.

Other popular references throughout ‘Supernatural’

There have been various popular culture references throughout the show from the very beginning. Dean usually uses names of 70s and 80s band members, including Lennon, McCartney, and Jagger as agent names. However, the Winchester brothers have also once used Moulder and Sculley and got away with it.

Some popular culture references have included elements from “Twilight,” “Star Trek,” and “Star Wars.” Fans enjoy the comments, as they make it seem like the brothers really are part of this universe, even if there are monsters and demons.

Supernatural” will air on Thursday at 8pm on the CW channel. The brothers will head off to a small town, where they find out there is a dark secret and possibly a pagan god.