So it looks like the concept list is down to 2 now, "Ox" and "Owl". Some of this may depend on what Orthanoch ends up as; if he goes for Warlock (and thus another ranged Striker), I'd lean towards Ox as a heavy melee type. Otherwise, I'll go with Owl, and I'll save Otter as a back-up idea. Either way, it should be an interesting party mix.
So far, Ox (or rather, Brennan McMillan) is going to be fighting with a reach weapon (probably a glaive), so he ought to be fairly good at covering several non-melee types. One facet of his personality which ought to amusing is his mild fear of walking dead- since he is "inspired" by Jayne Cobb from Firefly, the fear of Reavers became a fear of corporeal (or "walking") undead. On the other side, Owl (or rather Aiffe Northwind) can fight with a longsword (and may be aiming for the Mage of the Spiral tower paragon path- or may go the paragon MC warlock route), but is far more likely to attack with spells- and she apparently has a prefernce for fire magic. I'll get back to work- most of the background and mechanics stuff is done, but in longhand, so i still need to type it up.