Clark Johnson (Sean Micheal) is an Expeditionary.


Under Julius Berger's request, Jack sent Clark, Ryan Docherty and Josie Hunter on a mission to assassinate Rudi, the leader of the Advanced Cultivars. On their journey they were attacked and Ryan was killed. When Josie returned, she claimed it to be the ACs. But Clark was found by Jack and revealled that Josie attacked them. It was later revealed that the Josie that attacked them was actually an identical copy. (Episode 6)