Jax Bender was a teenager who set off a cherry bomb in school. He appeared in "Bag Man".
When Zee was rejected by Winton Omawale, Jax thought to cheer her up by doing a prank together, setting off a cherry bomb. However, the response to this was inordinate and nearly saw them expelled, so Jax fingered Gabbi MacArthur and Winton Omawale as the culprits, declaring that Zee would corroborate his story. However, Zee's story was unconvincing, which led to him, Zee, Gabbi, Winton, and also Sam to being placed in detention until the culprit admitted guilt.
Bored and unwilling to do so, Jax began flirting with Gabbi after Principal Gallo departed, only for Zee and Winton to come down against him. Gabbi eased the situation, but still ended up bantering with Jax, saying it wouldn't happen even if they were the last two humans on earth. After an incident with a mysterious bag, Jax became bored and decided to cover up the room's camera for a laugh, only for Gabbi to bring up his race. Angered, he left to go to the bathroom, stalling just long enough to hear Zee say she only considered him to be her friend "barely". He then scooped up the bag and continued to the bathroom to make a water balloon. However, before he could finish, the Bag Man emerged from the bag and killed him, leaving his severed head inside the bag.