Recurring guest star Larry Joe Campbell's final appearance as Chief Engineer Steve Newton. His duties are handed over to series regular J. Lee as John LaMarr.
With John's promotion to chief of engineering, the Orville will be without a regular navigator until the third season when Charly Burke is brought on to fill that role.
Lieutenant John LaMarr is promoted to the rank of Lieutenant Commander, the first cast member of the series to receive an on-screen promotion since Ed was made a Captain in Old Wounds (2017).
Directly references Edwin A. Abbott's 1884 novel, Flatland, in which the conceit of a literally two-dimensional society was first mooted.