Im basing my draft table at present on actors in order of first appearance but including guest appearances as well as series leads  thus both Hurndall and Hurt are in I can certainly include Cushing Martin etc as the work of fiction and hence the primary source Im talking about is the BBC TV series plus other BBC items the TV movie and the recent McGann minisode which the creators of the fiction ie the BBC currently clearly regard as part of the same continuity I dont see that Im obliged to include stage plays etc any more than if someone opted to write eg The Further Adventures of Moby Dick Id be obliged to include that in an account of Melvilles magnum opus An introductory sentence to the table will make its remit quite clear anyone wishing to do so is of course free to compile a list of spinoff Doctors unless one already exists