Sir Ranulph Fiennes
I'm very lucky indeed in my job to be able to meet people like Ran, and then beyond meeting them, get to work with them and come away with a picture of them.
It's lit with an SB900 through a strip softbox camera right, and fairly close to Ran, and an SB800 each side behind him with wide angle diffusers on. Triggered by Pocket Wizards and SU-4 mode. Desaturated and furtled with in Photoshop.