Nathalie Emmanuel knows all the 'Game of Thrones' secrets but she's not spilling.

Missandei was on 'Jimmy Kimmel Live!' last night and before he could even try to get spoilers about season seven out of her, she shut him down, revealing that she's a "fortress" when it comes to telling people anything.

Mostly, she says, because she hates when things are spoiled for her on other shows or movies but more than likely because she'd have a HBO-shaped target on her back if she uttered a word about the new season.

She's also able to speak a lot of Valyrian so if she wanted to torture you, she could. So really, don't ask.