'Dumbass killers for hire with a penchant for showboating flair.'

And 47.

"But isn't that what 47 is, Aisu?"

No. 47 is 'SMARTass killer for hire with a penchant for subtle flair'.

'Antisocial idiots who are good are way too good at stealth.'

'Loudmouth idiots who talk big, walk even bigger, and love to get into trouble.' aka '(gangster) gremlins'

Sometimes 'fathers or father-like figures that adopt all the kids in a game.' /shrug??? idk where that one came from but i've got 'em

'nosey investigative types that are way smarter than me'

Occasionally 'cuties dumb of ass' which may or may not combine with any of the others.

We could also just say 'villains' or 'smartasses' for most of them.