Board Thread:Episode Discussions/@comment-1181222-20180830115624/@comment-732150-20180831000151

Going by the credits, no one got credited for Kozuchi (though I thought the voice when Onoki mistook Boruto for him seemed a bit different) so the only source for how his name is written are subtitles, which say コヅチ, and two characters who I assume are the attacked guards at the end of the episode are called Uō/ウオウ and Saō/サオウ, probably a reference to 右往左往/Uōsaō, meaning something like "going this way and that way".