Very 'early Kirby' Thing, indicates the costumers really were paying attention. And the photos are just good enough to see Reed's gray sideburns... or that's what I think I'm seeing, anyway. He does look eerily Johnny-like in the promo shots, but I'm sure that on-screen they'll be different (although I'm not very familiar with either actor, I'm sure that the little things - voice and body language and spontaneous combustion - will set them apart). And there's some level of uniform customisation to tell people apart. (Not that Sue or Ben need any distinction...)
Now we need to see Doom. If they're going to show Doom at all. He'll be the hardest to pull off - if the rumours about him being transmuted are true, it'll be easier in a way, because otherwise he runs the risk of being compared to his conceptual child Vader by the ignorant masses.