Yes they will all be the same, except for Victoria, usually played by Rachelle Leferve. She will be replaced by Bryce Dallas Howard. There will also be new people that will play Riley and the other vampire newborns.
probally
Yes, the actors and actresses in Twilight are signed on to portray the same characters in New Moon and Eclipse.
The same actors who played them in Twilight and New Moon.
No, they are not the same.
Most of the cast will be the same, some characters will not appear, or will have larger or smaller roles. Some of the roles have been given to different actors.
The cast of No Eclipse - 2013 includes: Jay Bulckaert
The cast of Eclipse - 2012 includes: Sophia Pino
The cast of Eclipse I - 1995 includes: Luna Sea as Themselves
When the actors signed on to do Twilight they signed on for Twilight, New Moon, and Eclipse.
The cast of Eclipse - 2007 includes: Shirley Clemens as Elizabeth Jacobson
The cast of The Great Eclipse - 1992 includes: Will Lyman as Narrator
It depends.. If your planet has 2 or more moons then it its possible to have a solar and lunar eclipse at the same time.