Characters appearing on Terminator: The Sarah Connor Chronicles, but never on-screen.
- Main: Characters designated by the show's starring credits.
- Recurring: Characters appearing on screen in at least 3 episodes.
- Minor: Characters appearing on screen in less than 3 episodes.
- Unseen: Characters mentioned, but not seen on screen.
“Mr. Henriksen was a teacher at John Connor's Crest View High School in Red Valley, New Mexico...Mr. Henriksen
“Cynthia Nolan was a female high school student attending Crest View High School in the fall of...Cynthia Nolan
“Wayne Parker was a teenage male high school student who attended the Crest View High School as...Wayne Parker
“Emma Akagi was the mother of Xander Akagi and the wife of Alex Akagi. She was killed in an...Emma Akagi