You can add some more names to Ghostface's list of potential victims.  Heat Vision reports that Adam Brody (Jennifer's Body), Marley Shelton (A Perfect Getaway), and Erik Knudsen (Youth in Revolt) have joined the cast of Wes Craven's Scream 4.  According to HV, "Brody will play a cop recently graduated from college who was raised on the CSI TV series; Shelton will play a deputy who knew Campbell’s character in high school; and Knudsen will have a role similar to the one played by Jamie Kennedy in the first two installments, a character who is familiar with horror movie conventions and a provider of comic relief."

The three actors will join original cast members Neve Campbell, Courtney Cox, and David Arquette along with fresh blood Emma Roberts, Hayden Panettiere, Rory Culkin and Nico Tortorella. Craven and writer Kevin Williamson are doing everything in their power to prevent the identity of the killer from leaking.  It's important to remember that spoilers are now much easier to disseminate online than they were in 2000 when Scream 3 came out.  Scream 4 hits theaters on April 15, 2011.