HBO has been mum about the upcoming Game of Thrones Prequel, but its executive producer George R.R. Martin, who also created the epic fantasy series, gave juicy tidbits about the spinoff. The famed author dropped major details about the show, and it seemed well connected to the Stark family.

In an interview with Entertainment Weekly, Martin revealed the Starks and direwolves would make their way to the prequel series. As the show is set 5,000 years before the original series and the family was descended from the First Men, it would be no surprise to see Jon Snow's ancestors here.

"The Starks will definitely be there," Martin confirmed. He also affirmed the appearance of mammoths in the series, which recently hit the headlines due to a leaked street sign.

If there are Starks, will there also be Lannisters in the Game of Thrones Prequel? Martin said there would be no Lannisters in the series - at first.

Before the Lannisters take over Casterly Rock, there is another family that owns the homestead - the Casterlys. The house is then swindled by a witty man named Lann the Clever, who founded the House Lannister.

According to Polygon, the history behind Casterly Rock can be found on Martin's first book, A Game of Thrones. However, there is no much info about the Casterlys. It remains to be seen if this story will make its ways to the spinoff series. But as the 70-year-old novelist said something about it, the show might reveal how the Lannisters obtain Casterly Rock.

Additionally, in the Game of Thrones Prequel, Martin also teased fans are about to see Westeros divided into almost 100 kingdoms. In the original HBO series, there were only seven kingdoms. But back in the time, there were a hundred, and things might be more complicated here.

The spinoff also boasts all-star cast with Naomi Watts, Miranda Richardson, and Naomie Ackie, among others. However, the show will have no lead stars as just like Game of Thrones, the prequel will tell an ensemble story; thus, it will have a large ensemble cast.

"I hesitate to use the word 'lead,'" he explained. "As you know for Game of Thrones, we never even nominated anybody for lead actress or lead actor [during awards season] until recently; it was always for supporting [categories] because the show is such an ensemble."

Lastly, despite a lot of claims and leaks, the Game of Thrones Prequel remains untitled. The show has yet to be officially named. And although Martin suggested it to be called The Long Night and some already called it with its working title Bloodmoon, there are also suggestions it may be named The Longest Night.