The mohawk guy, Fifield ....is he the one standing at the waterfall?

I'm not sure if it was hair, it looked more like a huge chunk missing from his head.... (well that's what I made of it anyway.) edited for spelling, haha I gotta stop writing at 'daft O'clock' in the morning

@PRO II .......maybe you're right .....I'm not really sure ......I looked a few more times and paused, etc and to me it looks raised....... either hair, skin, I'm not sure.

I'm pretty sure it's the creation of humans scene and this guy could be one of the first humans created by SJs on the Earth.

Yeah what flexer said. The setting fits the description where Ridley Scott said they'd be filming the beginning of the film.

SJ has visited earth many times before? So if this is a human abducted by SJ into SJ world for genetic engineering and actually he is the guy who kills the SJ after experiment is done. Now the guy has set up an ambush for incoming humans, the Prometheus crew. There's only test result of SJ's, alive on the Croisant ship. A power hungry hydrid human-alien. Mayb old Inka ruler from earth or something?

No is too a secondary character to be so important for the plot ... my take on Fifield is He is in the wrong expedition party ( probably along Milburn and Ford ? ) ...he is mutated by something ...he attack the crew in the hangar .... he die after the epic fight ...fifield over .

I don't think it can be Fifield for two reasons, first I think he is the mutant dropping off the transported onto a crew member, there is definitely a Mohawk hairstyle going on there and I reckon he ends up ded when the Prometheus rams the Alien ship. The second reason, I don't think it's hair, it's moving like liquid. I'm betting it's either David or Vickers evolving the Bio-mechanical theme into the next installment.

Looking at that scene its a pale skined person that seem to have something thats effecting him, like some kind of fluid thats coursing though his viens. His head looks like it has a scar or cut/graise upon it but it seems to be moving as if its either rotting away or repairing itself.

This looks as good a place as any to ask this question... Does anyone else hear the voice narrating the "A king dies..." monologue to sound like Sigourney Weaver? It would be a cool nod to the original heroine if it was. And no, I'm not saying she will appear anywhere in the movie. Just that particular monologue.

Fifield is deffo the one on fire jumping from one of the RT's ... and then fighting someone in the hangar ...