I'm setting up a dungeon crawl one-off and want to offer some pregenerated characters to reduce setup time. They'll have a touch of room for customization, so I'm hoping I can get away with some generic pre-gens and not, you know, 21 different sheets to proofread.

My first three shots at the dungeon crawl archetypes are: fighter, sneaker, caster.

These line up with Elder Scrolls Online's take on basic classes, but are there other ways to dungeon crawl? I suppose there are Talker and Singer too, but those two are likely to get axed after they alert the first dwarven sphere to the party's presence. Does the Caster really need to break down into Fireballer and Healer? According to the White Box, the answer to that is "yes." Is it critical to have Final Fantasy 1's blends of these, the Black Belt (fighter/sneaker) and the Red Mage (fighter/caster)?