Could you imagine using of these words ‘baddie / goodie’ for real person and not in relation to film or carton, scenario, etc.
Just a team member, to be more specific. Or just of a ‘regular’ community (group of people), like a (old) class in school.
Can the words be used like this, then:
“He/she is a baddie”. (“Is he/she the (?) baddie?”)