Two more impressive actresses have been added to the cast of Wes Craven‘s return to the Scream franchise. True Blood‘s own Sookie Stackhouse, Anna Paquin, and Veronica Mars and Forgetting Sarah Marshall star Kristen Bell have both signed on for roles in Scream 4 (er, SCRE4M, but we hope if we ignore that it’ll go away).

The two new additions join an already huge cast including returning stars Neve Campbell, Courteney Cox Arquette, and David Arquette, as well as newcomers Emma Roberts (Nancy Drew), Hayden Panettiere (Heroes), Marielle Jaffe (Percy Jackson & The Olympians: The Lightning Thief), Rory Culkin (Signs), Nico Tortorella (Make it or Break It), Erik Knudsen (Scott Pilgrim vs. The World), Anthony Anderson (The Departed), Adam Brody (The O.C.), Marley Shelton (Grindhouse), Alison Brie (Mad Men), and Mary McDonnell (Battlestar Galactica).

As many of you should know by now, Scream 4 has constantly been picking up steam over the past few months, and it’s not slowing down now.

After securing main returning stars like Neve Campbell, David Arquette, and Courteney Cox Arquette, as well as original screenwriter Kevin Williamson and director Wes Craven, it was time to find and acquire some fresh blood.

This began with the casting of Emma Roberts as one of the female heroines (and likely the lead female if this does turn into a second trilogy). Right around the time that Roberts was cast, Heroes star Hayden Panettiere and Rory Culkin were rumored to be up for parts as well…eventually progressing to confirmations.

Dimension Films’ has announced that they have cast Emma Roberts as one of the heroines in the upcoming next chapter of their mega-popular horror franchise, Scream 4. The studio has also released a teaser poster that you can see by clicking the image to the right.

Roberts is of course the 19-year-old daughter of Eric Roberts and niece of Julia Roberts, and has appeared in mostly kid and teen-aimed movies like Nancy Drew, Hotel for Dogs, and the TV show Unfabulous. Clearly Roberts is ready to try and break out of as a more serious adult actress with the casting as one of the lead roles of this new movie.

We’ve heard quite a lot of talk about a Scream 4 being made, but it always seemed to be writer Kevin Williamson or one of the stars chatting about it and rarely anything official. The biggest question surrounding the movie, which would mark the first flick in the franchise since 2000’s Scream 3, was whether or not director Wes Craven would return. Various reports have seemed to point to Craven coming back, but until today, those were all just a lot of hopes and finger crossing from those involved. And let’s not kid ourselves — since Williamson and Craven were not part of that third movie, their involvement is nothing short of crucial to the success of this movie.

Now, the answer to this all-important question now appears to be a 100% yes. Dimension and The Weinstein Company have put out an official press release, and not only does it confirm Craven’s return, but it also reaffirms the return of stars Neve Campbell, Courteney Cox, David Arquette, and gives us a release date for Scream 4. Now we get to wait and see who the new faces they plan to cast will be; will they be known or unknowns?

Click over to read the full press release and find out when you can see more Scream!