'Vampire Diaries' Star Nina Dobrev On 'Ruthless' Mom, Isobel: 'She Doesn't Care About Human Life'

If you're anything like us you can't wait for tonight's episode of "Vampire Diaries." Now, we'd love to tell you to sit back and relax, but frankly tonight's epi promises to be totally worthy of edge of your seat anxiety, as Elena, (Nina Dobrev), finally reunites with her long-lost vamp mom Isobel (Mia Kirshner).

"Mama's coming to town," said Nina, who stopped by MTV News earlier today to spill plenty about the show. Nina added that Isobel's return comes as a complete shock to Elena, who quickly learns that her mom isn't exactly the hugs and kisses type.

"She doesn't seem like your typical stay at home mom who bakes cookies in the kitchen and packs her kids' lunch for school — she's got a hard edge to her, she's a vampire," Nina explained.

Of course, as if meeting your long lost mom who happens to have fangs isn't hard enough, Elena learns that mommy dearest is on a mission.

Vampire Diaries"It's made obvious that Isobel wants what a lot of people in the city have been looking for recently," said Nina who didn't want to give away too much. "Let's just say she's not the only one looking for it. It's an item she needs for her master plan." (OUR THEORY: It's totally the same pocket-watch-like contraption Jonathan Gilbert's trying to hunt down! Just sayin'...).

To make matters worse, Isobel will stop at nothing to get what she wants, even if it means hurting people along the way.

"Isobel will threaten, whether or not she will succeed, I can't say," Nina teased. "She's ruthless. She's kind of like what Damon was like at the beginning of season one. She didn't really care about anybody else but herself. People were like shrimp to her — you eat 'em and then you throw out the little tails, it's not a big deal. She's doesn't care about human life, but we'll see how many people if she does kill anybody."

Even with all the chaos though, Elena does manage to ask her mom about another significant long-lost family member: her father.

"Elena will definitely ask Isobel who her father is," Nina told us, although she wouldn't confirm if Isobel offers a definitive answer. Now, we here at Hollywood Crush don't give up so easily, so we asked Nina if she could at least tell us whether her dad has already appeared on the show.

"Maybe," Nina said after thinking for a bit. "Maybe not. You have to watch and see!"

Are you looking forward to tonight's episode of "Vampire Diaries"? What do you think Isobel is after? Finally, if you had to guess, who do you think Elena's daddy is?