
Simply put, the Golden Company is an elite army of mercenaries whose “word is as good as gold,” meaning that they have never broken a contract before. The show has only referenced the Golden Company a handful of times (Stannis refuses to hire them and Daenerys mentions Jorah joined the company when he first fled to Essos). These forces are commanded by captain Harry Strickland, and their banner is made up of three white skulls on a golden field.
But the idea of this mercenary army didn’t materialize until Cersei Lannister saw herself surrounded by “enemies to the East, enemies to the West, enemies to the South, enemies to the North.” With her armies depleted, she tells an ambassador of the Iron Bank of Braavos about her intention of hiring the Golden Company. After meeting with Jon and Daenerys at the dragonpit, where she pledges to send her armies North, Cersei instead sends Euron Greyjoy to provide boats for the Golden Company to cross the narrow Sea.
And finally, in Season 8, Euron delivers the Golden Company and brings Harry Strickland, their Commander-in-Chief, to meet the Queen, who becomes disappointed when she’s informed that elephants couldn’t be brought to Westeros. Strickland did bring 20,000 men and 2,000 horses, so not bad.
Realizing this potential, Aegor founded his own mercenary army, the Golden Company. His army was made up of any soldier or knight who had been exiled from Westeros, especially those who were part of House Blackfyre, descendants of House Targaryen. Their battle cry is “Beneath the gold, a bitter steel,” a reference to its founder, who promised to return one day and claim what was his.
And since their official motto is “Our word is as good as old,” it’s safe to assume they are reliable. However, in the books, they have invaded Westeros for themselves and have already occupied parts of the country. In addition to that, there’s a subplot of a kid claiming to be Aegon Targaryen (Rhaegar’s alleged son) whom the Golden Company starts supporting as the true heir to the throne. Bearing in that in mind, what’s going to happen, both in the books and in the show, when Jon’s true identity is revealed to them?
The Golden Company has never broken a contract, and their words are as good as gold. Gee, wouldn’t it be so Game of Thrones-y if this turns out to be the first time the Company breaks a contract? In other words, wouldn’t it be perfect if, upon realizing Jon is the true heir to the Iron Throne, they would totally turn on Cersei? At least that’s what I think would happen.

