Actress and singer Evan Rachel Wood will make her debut in HBO series True Blood this Sunday as the sexually voracious vampire Queen Sophie-Anne, E! Online reports.

"She's not necessarily a lesbian," Wood said. "Her human partner is a girl, but I'm pretty sure she goes both ways. I think vampires are like that in general."

The 21-year-old Raleigh, N.C.,native said that she was a huge fan of the show when it first aired and immediately contacted series creator Alan Ball, hoping for a role.

"I thought it was a long shot, but then later on I got a call saying they needed a queen," Wood said. "I said yes, even before I read the script."

True Blood chronicles the lives of vampires and humans, centering on a woman who falls in love with a vampire.