Tech Jacket in the Invincible TV show appears to be a lot younger than in the comics—likely around Oliver’s age , so roughly 14–15 years old in the show. In the comics, Tech Jacket is generally understood to be closer to 18–19.

Show vs. comics

  • TV show: younger, still very much a kid, with the episode framing her at about the same maturity level and height as Oliver.
  • Comics: older teen/young adult, roughly around Mark’s age or slightly younger, near 18–19.

Why fans think that

The show also changes Tech Jacket’s character in another big way: it gender- swaps Zack Thompson into Zoe Thompson , which is one reason people noticed the age shift right away.

If you want, I can also give you a quick Tech Jacket comics vs. show breakdown.