Steven Moffat has revealed that Captain Jack Harkness and River Song returning to Doctor Who is a possibility that’s “never, ever closed off”.
John Barrowman last played Captain Jack Harkness in ‘The End of Time: Part 2’ (2010), while Alex Kingston was last seen as River Song in ‘The Name of the Doctor’ (2013).
Speaking to +Zap2it
, Moffat said: “It’s never, ever closed off. It’s all about ‘Do you have a story that’s worth it?'”
He explained: “Unless you’ve got a story that is absolutely informed and invigorated by their presence, just bringing a character back in an ordinary story won’t do.”
“Both River Song and Jack Harkness are massive characters in Doctor Who mythology,” he added. “Their returns would have to be seismic, not routine.”