Os atores e atrizes de Amanhecer Parte 2 são os seguintes:
Kristen Stewart, Robert Pattinson, Taylor Lautner, Dakota Fanning, Michael Sheen, Ashley Greene, Jackson Rathbone, Anna Kendrick, Nikki Reed, Maggie Grace, Kellan Lutz, Peter Facinelli, Jamie Campbell Bower, Elizabeth Reaser, Billy Burke, Lee Pace, Cameron Bright, Mackenzie Foy, Rami Malek, Joe Anderson, Christopher Heyerdahl, MyAnna Buring, BooBoo Stewart, Christian Camargo, Angela Sarafyan, Julia Jones, Mía Maestro, Noel Fisher, Judith Shekoni, Bronson Pelletier, Daniel Cudmore, Tinsel Korey, Casey LaBow, Ty Olsson, Omar Metwally, Chaske Spencer, Charlie Bewley, Andrea Gabriel, Toni Trucks, Marlane Barnes, Valorie Curry, Tracey Heggins, Guri Weinberg, Erik Odom, Lisa Howard, Bill Tangradi, Patrick Brennan, Lisa Howard, Patrick Brennan e Amadou Ly.
Obviamente, destaque especial para Kristen Stewart, que interpreta Bella Swan, Robert Pattinson, que faz Edward Cullen e Taylor Lautner, interpretando o personagem Jacob Black, o cachorrão de Amanhecer Parte 2 e outros filmes da saga.