Today is Alexander Skarsgård?s 39th birthday. Born in Stockholm, Sweden, Skarsgård is best known for his time on HBO?s popular vampire series, True Blood. As Eric Northman, Skarsgard was a starring cast member and headlining character. Skarsgård's other notable roles include Straw Dogs, What Maisie Knew, and this year?s The Diary of a Teenage Girl. And he will anchor his first franchise next summer, as Tarzan in Warner Brothers.? high-budget Tarzan remake. Happy Birthday, Alexander!