| Cast list |
| Arnold Schwarzenegger | as | The Terminator (voice) (also archive footage) |
| Poppi Monroe | as | Kate Brewster (voice) |
| Claire Danes | as | Kate Brewster (archive footage) |
| Nick Stahl | as | John Connor (voice) (also archive footage) |
| Kristanna Loken | as | T-X (archive footage) |
| David Andrews | as | Robert Brewster (archive footage) |
| Billy Brown | as | Additional Voices (voice) |
| Pat Fraley | as | Additional Voices (voice) |
| Doug Gochman | as | Additional Voices (voice) |
| Nicholas Guest | as | Additional Voices (voice) |
| Phil LaMarr | as | Additional Voices (voice) (as Phil Lamarr) |
| Wendy Schenker | as | Additional Voices (voice) |
| Steve Susskind | as | Additional Voices (voice) |
| Fred Tatasciore | as | Additional Voices (voice) |
