He runs a dance troupe. This is definitely a Body Type.
We know he is no Head Type; analyzing the world is not his forte, lol. And he can’t be a Heart Type because he has no Envy. He likes revenge, but that’s something different.
I have a hard time thinking of him as a One because he has no financial acumen. He has the zippy physicality of a One, and he’s funny in his own way, but it doesn’t feel right to call him a One.
He’s a Nine. Unhappy or unfulfilled Nines can create chaos. They don’t want to — avoiding conflict is still a core Nine trait — but in their search for satisfaction they churn trouble. If anyone is a lightning rod for catastrophe, especially on Earth, it’s Jason.
For humor, Jason’s written as a cheerful idiot. Finding an Enneagram can be difficult when a character is almost a stereotype, but the showrunners and actor give Jason a rounded personality. A Nine’s sense of justice shines through.