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Stellan Skarsgard

Pascal Le Segretain/Getty Images

Watch out Mel Gibson: There's a new octo-dad in town.

Avengers star Stellan Skarsgard  and his wife Megan Everett welcomed the actor's eighth child in Stockholm Friday, a baby boy, according to The Hollywood Reporter.

That means True Blood star Alexander Skarsgård just became a big bro…again (the hottie on-screen vamp is one of Stellan's eight children).

The 61-year-old thesp and his wife also have another son together, three-year-old Ossian.

Congrats!