Don't mind the lone human.
Oh airbrush tool, how I missed you. (In retrospect, I could've picked a better background...) This pic wasn't drawn solely to test that out, though; I just wanted to draw another group shot. It would've been longer, but then I inked Quint before I drew the person behind him, then I couldn't think of who else to add, then I decided that Quint made a nice bookend to the line (what with Rock being in front).
The lady in-between Proto and Roll is Quakewoman, who'll presumably make her debut in Archie-MM #13 alongside her creator(?), Dr. Lalinde. I have no idea what kind of personality she'll have, but for some reason I think she'd enjoy teasing Proto a bit (badass loner and all).
(BTW, I think "Quake" in this context might mean "shakes things up", not "causes earthquakes")
Dub probably wanted to be in front so that he could actually see.