Fan Casting Slither in George Nolfi's Captain America

Not much is known about Slither before his first appearance. It is especially unknown if he was born with his serpentine features or if he mutated to his current form during adolescence. He, along with the rest of the team that would come to be known as Freedom Force, first came to public attention when they attempted to rob an armored car in Washington, DC, only to have their efforts thwarted by Captain America and his partner-in-training, Bucky, who were there to testify in front of the Senate Committee on Superhuman Affairs. While sitting in a federal prison awaiting trial, Slither and his teammates were given the option to become government agents under the direction of Department of Homeland Security agent Valerie Cooper as an alternative to SHIELD's Sentinel program, in exchange for having the charges for their armored car robbery dropped. Accepting, Slither and the others were given the name Freedom Force. As a member of Freedom Force, Slither has come into conflict with the Renegades and Captain America, the latter in a case of mistaken intentions while both were investigating the Serpent Squad. During the second case, Slither was offered a place with the Serpents, and would have accepted if he hadn't been knocked out by Rattler's vibration attack. Following that case, Slither and Cooper got into a heated argument over his tactics, which led to him resigning from the team and storming out of the office; of his teammates, only Meteorite was sad to see him leave. Whether or not he will take the Serpent Squad's offer of membership in the near future is unknown.