Full-frontal Skarsgard heats up 'True Blood' finale

He's completely naked. Reading a book. In the sun. On an icy mountaintop in Sweden.

Spoiler alert!

Alexander Skarsgard, who plays vampire Eric Northman, a main character who has been a beloved part of the HBO show, is going viral for going out in a full frontal blaze of glory in Sunday's True Blood Season Six finale.

"He is in a very, very vulnerable situation with no ability to hide," explains the episode's director Scott Winant in an HBO behind-the-scenes video. "He has no choice but to burn. And he does burn."

A gif of the scene is going viral.

Reaction to the finale has been mixed.

Tweeted Modern Family's Sarah Hyland: "The #TrueBlood season finale pissed me off tonight. A LOT. That being said I cannot wait till next season."

Kevin Smith: "I saw the stake between Eric Northman's legs on @TrueBloodHBO. If THAT'S what a man's supposed to look like, I've been doing it wrong..."

Patti Stanger: "If you killed @AlexanderSkars off I will die @TrueBloodHBO pls have Pam save him!"