While I've never heard of Dragonball--and I'm sure it's really great--I'll make a wild guess that 100s or 1000s of people worked on it in one capacity or another and that doesn't really make them "Notable".
That sounds great. I was actually thinking "video game" but didn't bother looking it up because it's not really that important, is it after all?
But I can think of some other musicians who've worked on cartoons--David Bowie, Roger Waters, Primus, uh, Art Garfunkel. One thing they have in common is their notability didn't really come from that type of work. Straining a bit through the mists of time, I suppose Frank Churchill is genuinely notable for his cartoon work. Matt and Trey, of course, but they are writing show tunes for fun, it seems.
I mean, it's incidental music, right? Hollywood has lots of people who do that. No one cares about them either.