I found a really nice head from Cotswold Collectibles. They make a series called Elite Brigade. The body is modeled after the 1960s G.I.Joe, but the heads are mostly all new or retooled sculpts. This one looked so much like Enver Gjokaj, who plays Daniel Sousa on Agent Carter, that I simply had to get it. The Cotswold headsculpts are all available in a choice of hair colors, so I picked this sculpt, with black hair, but couldn't change the eye color (Enver has brown eyes, but the figure has blue) and the space is so tiny that I can't get a decent shot at changing the eye color myself- not now anyway.
He's got a standard G.I.Joe Classic Collection body. There aren't many of this skintone, that I've seen, a sort of ashy tone that matches the Cotswold sculpt nearly perfectly.
He's dressed in a Ken shirt, pants and shoes, with a jacket from a figure from The Detectives by Action Figure Paradise. His crutch is vintage 1960s G.I.Joe.