Board Thread:Theories and Rumors/@comment-34210408-20180128141738/@comment-26921673-20180216151031

Harumi seems like the most likely choice. The mechanic, dareth and zoltar are all minor characters. Also in episode 78, Harumi walks off screen to do something "more productive", and later in the episode Violet gets a call telling her that Zane is snake jaguar, and the caller is the quiet one. Who else hangs out with the ninja and would know that? Harumi.