The time traveling teaser is returning – River Song, played by Alex Kingston, will appear in the upcoming Doctor Who Christmas episode, for the first time opposite Peter Capaldi, and the third incarnation of the Doctor that she’s appeared with.
River’s appearances in the Doctor’s timeline is very twisted. The two encountered each other in opposite directions. In her very first appearance in “Silence in the Library/Forest of the Dead” (with David Tennant), it was the first time he met her – but in her case, it would be her last (sort of). They then successively encounter each other in reverse order – as the Doctor sees her more and more, it is earlier in her timeline, but we learn more about her mysterious past, such as that she’s been in prison for killing a “good man”, which we later learn is the Doctor himself. Finally we learn the meaning behind her name and who she really is.
When we last saw her, her “ghost” self from the Library speaks to the Doctor via a telepathic connection, as he himself approaches his own ending.
Is she still a memory? A ghost? Who knows. Time travel is involved and we know she has knowledge of some of the Doctor’s incarnations. We could encounter her somewhere in between previous appearances. Even showrunner Steven Moffat says, “So how can he be seeing her again? As ever, with the most complicated relationship in the universe, it’s a matter of time…”
Alex Kingston is scheduled to appear at Rhode Island Comic-Con in November…I hope I have the chance to interview her…