|Characters and/or events depicted in this article are a what-if version and are non-canon|
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This J.T. is a "what if" version of J.T.
J.T. shares the same appearance as his 10-year-old Prime Timeline counterpart.
During gym class, he wore a yellow T-shirt and dark blue shorts.
J.T. is first shown talking with Cash as a background character. Later he appears alongside Cash when he messes with Jamie during a literal "shakedown". He is then shown at the gym picking people for a dodgeball game and later running from Vilgax's Drones. In the episode's climax, he along with Cash are among the first to see Ben turn into XLR8. At the end of the battle between the Tennysons and Vilgax, he and Cash get a Wedgie from XLR8. At the end of the episode, he and Cash move aside to show their new fear of Ben.
- Goodbye and Good Riddance (first appearance)