 Fleck and Winston resumed their recurring roles on Enterprise in both parts of " Storm Front " , as Silik and Daniels . J. Paul Boehmer resumed his role from " Zero Hour " as an SS Agent ; he had previously appeared as a Nazi in the Star Trek : Voyager episode " The Killing Game " , as well as the Vulcan Mestral in the Enterprise episode " Carbon Creek " . Two other actors who returned in " Storm Front " from previous Voyager appearances were Tom Wright who had appeared as Tuvix in the titular episode , and Christopher Neame who played Unferth in " Heroes and Demons " . 
