Main Cast:
* Christian Bale as John Connor
* Sam Worthington as Marcus Wright
* Bryce Dallas Howard as Kate Connor
* Common as Barnes
* Anton Yelchin as Kyle Reese
* Moon Bloodgood as Blair Williams
* Michael Ironside as General Ashdown
* Helena Bonham Carter as Serena Kogan (voice)
Supporting Cast:
* Jadagrace as Star
* Arnold Schwarzenegger as Terminator (voice)
* Jed Rees as Dr. Serena Kogan (voice)
* Dean O'Gorman as T-600 (voice)
* Richard T. Jones as T-7T (voice)
Please note that this list includes the main cast and some notable supporting actors. There are many other actors and actresses who played smaller roles in the film.