For those of you who have seen Colin Baker at a convention, you’ve probably heard the “But I’ve never regenerated” story. His joking logic is that since his regeneration was simply just Sylvester McCoy in a very bad, curly blonde wig, he’s the  one and only true Doctor.

The death of the Sixth Doctor has always been a bit of a mystery to fans, especially since he was perfectly fine in the last episode of his final serial, “The Trial of a Time Lord.” So fine, in fact, that he goes and takes Mel home to her own timeline.

But suddenly, in the next episode, “Time and the Rani,”, the TARDIS is hit by the Rani. While he is seemingly unconscious, he regenerates into the Seventh Doctor… which seems a bit odd, seeing as Mel, his companion was in the same attack and is perfectly fine.

But whatever. Maybe the Sixth Doctor has a weak constitution. Maybe he was subjected some special time-beam that forced his body to collapse. Who knows? The point is, we don’t really know what caused the incarnation of the Sixth Doctor’s death.

In fact, much speculation has surrounded the reasoning for his regeneration, and the sudden attack of the Rani, some of it even appearing in spin-off mediums. But none of them have really been satisfying, or really accepted as canon by the fans.

Thankfully, it looks like Big Finish is going to change this.

Big Finish, a long time producer of the ‘Doctor Who’ audio plays, has announced a new series for the Sixth Doctor, entitled “The Last Adventure.” And while this may sound like it’s the end of the Sixth Doctor, do not despair. He’ll be back to do stories from earlier timelines.

Colin Baker even gave his blessing to the story, stating:

“I owe a lot to Big Finish. They have given my Doctor the opportunity to live beyond those few episodes on television which were recorded during a time when the program was under siege from various quarters. My Doctor did not benefit from that time. However at Big Finish the Sixth Doctor has lived and breathed anew and developed in a way that I am extremely happy with.

That would be the only reason I have agreed to bring my Doctor to an end – although it’s not really an end, because Big Finish plucks stories from the whole era of every Doctor. But because I never actually filmed a regeneration, and left poor Sylvester floundering around in my empty clothing with a blond wig on, I have resolutely maintained the lie that I am still the Doctor and all the rest are imposters because I never regenerated! So it’s a tribute to the smooth talking people at Big Finish and the standard of the work completed thus far that I have cast aside my reluctance and joined all the other Doctors in actually having a regeneration.

And I can promise you: it’s a cracker.”

The story will be released September 2015, so mark your calendars.

Source: Big Finish