None of them is fake or an “actor”.
They're real groups that follow different philosophies, but they all owe their existence to the OG Black Panthers.
There's more than two Black Panther parties.
There's the Revolutionary (RGB) Black Panther Party, the New Black Panther Party, among other factions, and the OG Black Panther Party for Self Defense, created by Huey P. Newton, Bobby Seal, etc.
The Black Panther Party for Self Defense is the REAL one, although the aforementioned ones have taken certain philosophies of the first group and added some of their beliefs, etc.
I think some of you don't truly understand the Black Panther Party's ideology and/or only paid attention to certain aspects and imagery you liked but never delved deeper into the mentally of the group, for example, yes, first and foremost, the party's main concern is and has always been Black people and the Black community in general, with Black Power being their defining message but they're deeper than just that overall.
Fred Hampton, Huey P. Newton, etc., believed in a rainbow coalition perspective, in oppressed people fighting back against the systematic oppression, the Black Panthers had allies and connections from all races, and not to mention even overseas with certain Japanese, Soviet Union, Cuban, etc leaders.
Historically, politically, and socially speaking, they've been a Marxist–Leninist/far-left type of group.