"Chuck Versus Agent X" was one of many episodes to be directed by producer Robert Duncan McNeill,[REF] and was written by Phil Klemmer and Craig DiGregorio [REF].
Series co-creator Chris Fedak stated in a later interview that the inspiration for Volkoff's true identity being a gun-shy British scientist was Timothy Dalton's portrayal of Gregory Tuttle, Volkoff's guise as Mary Elizabeth Bartowski's MI6 handler, in his first appearance on the series [REF].