Fan Casting Vermin in George Nolfi's Captain America

The man currently known as Vermin was a homeless man living in sewers and homeless shelters of New York City when he was abducted by scientists working for Arnim Zola and AIM on behalf of Baron Zemo. AIM's scientists performed a number of experiments on the man, including retroviral injections of rodent DNA, which gave him many features similar to those of rats. Vermin was then commanded by Zemo to send the city's rats and stray dogs after Captain America in the latter's home in Queens. The Captain managed to defeat Vermin, though the latter escaped and fled into the sewers, leaving a trail to Zemo's lair clear enough for the Captain and his young partner, Bucky, to follow. This was, however, a ruse as Vermin was leading the two into one of Zemo's traps. Zemo, deciding that Vermin's usefulness was at an end, had Vermin chained between Captain America and Bucky, intending to kill all three of them. The three got free, however, and Vermin disappeared in the chaos. Captain America decided to let Vermin go, cautioning Bucky that Vermin was a bigger victim of Zemo than they were. A man matching Vermin's description was later seen living among the Morlocks in the tunnels under Manhattan. Whether this was indeed Vermin or just someone with a similar appearance is currently unknown.