ET spoke with Sophie after she walked the red carpet with fiance Joe Jonas at the 'Game of Thrones' season 8 premiere.
The actor says he's known about Clarke's health struggles for 'a very long time.'
The actor opens up to ET about how the 'GoT' cast supported Clarke through her life-threatening health scares.
The 44-year-old actor joked it felt 'good' to be alive at the HBO series' season eight premiere.
The 32-year-old actress also opened up to ET about her life-threatening aneurysms and next chapter at the 'GoT' premiere.
The HBO show's stars and their famous friends pulled out all the stops when they walked the red carpet in New York City on April 3.
The stars of the show brought their A-game to the show's season eight premiere in New York.
The star-studded event was missing a queen on Wednesday night.
The actress also gushed to ET about having Joe Jonas' support at the 'Game of Thrones' season eight premiere.
Take a peek at this incredible clip for the new episode!
The 'Game of Thrones' star and Jimmy Fallon had his audience thinking she'd dropped a major spoiler from the HBO hit's final season!
HBO has released three new promos for season eight.
The 21-year-old actress breaks down her supposed big spoiler reveal.