I'm the Tarjei anon and I want to say YES OMG yes to everything you just said. Seriously, he's so talented I don't remember ever feeling so much while watching someone perform and I'm just shocked. ALL THE TIME. His face, all the emotions you can see, the pain in this one scene with Sonja (ep8), the fear on his face whe Isak was looking for Even, the way he smiles and blushes at Even (cause, damn!!!), theven, you can literally SEE the love in his eyes, like, HOW THE FUCK DOES HE DO IT. HE'S 17!!
OH MY GOD I KNOW!!! It’s so mind blowing!!! And even that scene with Sonja, it wasn’t just straight up pain, but like shock and disbelief and devastation and fear and almost a little knowing? and when I say knowing I don’t mean that what she said was TRUE, but that he BELIEVED her because he’d always had that fear. Since Even left before Isak woke up the first time they’d spent the night together and the fear and sadness on his face the SECOND time he woke up and Even wasn’t there (even though he was just in the kitchen). It was like he KNEW it was all too good to be true so therefore what Sonja was saying HAD to be right and you just want to be like “NO BUDDY NO DON’T LISTEN TO HER, DON’T BELIEVE THAT!!!!!”
The fact that Tarjei isn’t just looking at the words on the page for the scene in front of him, but taking into account everything Isak has been through and everything Isak has heard and seen and thought in the past and brought it to the surface JUST WITH HIS FACIAL EXPRESSIONS ALONE is mind blowing. It’s not something that usually comes natural for most actors, especially untrained actors. He’s amazing