Yeah, the criteria (meant to distinguish between most of the other stories out there) are what we think of a typical fantasy adventuring party:
Intellectual who avoids physical combat mostly. The magic user or scientist for example.
The warrior, who is there for security, protection, and/or is the one who shines when the fighting starts
The rogue, who is the scout, sneaky guy, does the less honorable dirty work, etc
All are on an adventure to find riches, gain glory, or exploration.
With that criteria, it pretty much eliminates the apostles, or cavemen, or even the three musketeers (since they had largely overlapping skills, it was their personalities that set them apart).