I Need YOUR Help!

I‘m working on a new quiz and I could really use some insight.

I‘m putting together a quiz about the Marvel characters who have been members of the Thunderbolts in the comics. However, I haven‘t read very many Thunderbolts comics myself and have thusly had to rely on sources such as Wikipedia and the Marvel Fandom wiki. The problem with that, though, is that it‘s dificult to tell which characters have been major members of the team, and which have meerly been „cannon fodder“ members (that is, characters who have technically been members of the Thunderbolts, but in a way that doesn‘t amount to being much more than a background character in only a few pannels or a character who only appears in order to be uncerimoniously killed off to establish the stakes or tone of the story).

So what I‘m looking for is input on which Thunderbolts members have received main focus in Thunderbolts comics, and which members have been nothing more than cameos. If you can provide details on the character‘s involvement in the team as well, that would be appreciated.

Thank you for your help.