It's Official: Leah & Seth Cast; Jodelle Ferland's Role Revealed

It is Official! Summit has confirmed that Julia Jones will play Leah Clearwater, BooBoo Stewart will play Seth Clearwater, and Jodelle Ferland will play Bree:

Julia Jones

BooBoo Stewart

From ET Online:

Joining the cast for 'Eclipse' are Bryce Dallas Howard (who replaces Rachelle Lefevre as Victoria), Xavier Samuel (Riley), Catalina Sandino Moreno (Maria), Jack Huston (Royce King II), Julia Jones (Leah), BooBoo Stewart (Seth) and Jodelle Ferland (Bree). Check out some of the newcomers here!