Once and Future

Big anniversary stories now seem to require gathering as many Doctors together as possible. That's getting harder to do on TV, but strangely easier to do in Big Finish, at least for the time being. In 2023, Big Finish had the original actors for the Fourth through Tenth Doctors, and official recasting for the First, Second, Third, and War Doctors. Not to mention a bunch of companions, spin-off characters, and original creations. Fitting them all into one story is asking for trouble, but a series of shorter episodes, that's reasonable. So we have this, where an "unidentified" Doctor is hit with a "degenerative" weapon, which results in him manifesting his other selves, past and future (don't squint too hard at that last bit). We're not supposed to know who the original is, but this is a Time War weapon if I've ever seen one, so that means it gets slotted in here.