Note: This list only include those who were portrayed by actors in the film. Other characters that weren't played by an actor will not be mentioned.
Humans-
Vampires-
No Coven/Group
Olympian Coven
James' Coven
The Volturi/Guards
Werewolves-
Xavier Samuel
Kristen Stewart
Taylor Lautner plays Jacob Black in The Twilight Saga: Eclipse and all of the other films.
She plays Bree Tanner in Eclipse
Julia Jones will be playing Leah Clearwater in The Twilight Saga: Eclipse. - princesswolfie
Dakota Fanning plays Jane in New moon, Eclipse and Breaking Dawn, not in twilight.
Edward Cullen plays the main boy, he is played by Robert Pattinson
My Love by Sia
Leah Gibson plays 'Nettie' In twilight Eclipse. p.s. my name is leah gibson aswel :)
Riley Biers in "Twilight Eclipse" is played by actor Xavier Samuel.
In The Twilight Saga: Eclipse, Bella Swan is potrayed by Kristen Jaymes Stewart. Kristen also potrays Bella Swan in all of the other Twilight movies, too.
Renee Dwyer, who is Isabella Swan's mother, is played by Sarah Clarke in Twilight and Eclipse.