Oh those guys? Yeah those are just the dozens of professional voice actors we could afford to hire with our tiny baby game studio budget! And those guys? Yeah that's just our 7-person "engineering" team. What do you mean your entire studio is 4 people?
suck off me
(for the record I'm not dunking on Hades or Hades 2 as a game this is just something that pisses me (and I assume only me) off)
the first 29 people are the actual company. debatably the "contributors", but everybody after that starting with the "Animated Trailers" guys are freelance.
"independent" just means
Publishers
Supergiant Games, Inc.
Developers
Supergiant Games, Inc.
it's not a budget constraint. If the fuckhead who made minecraft took his pile of money and funded a AAA-budget and scale game it would still be independent