Really? Holden damn close to the platonic ideal of a reluctant hero, with a strong moral compass.

He wobbles a bit later with all the PTSD, but generally always tries to do the right thing the best way he can.

Naomi and Bobbi too, Naomi did bad stuff in her back story, but she’s much sutlrer of herself and her sense of right and wrong due to that. Bobbi possibly a very mild anti-hero as she can lean a little blood knight, but not quite anti-hero in my view.

Drummer and Fred Johnson are much more morally grey, and start out as more antagonists than they end up being.

Avasarala is similar, but she’s also a magnificent foul mouthed mother. She can get anti-hero status for sure.

Amos I think is more of a villain protagonist (dueteragonist?) than anti-hero.

Miller is anti-hero in the Shinji Ikari type.