Good news, "Doctor Who" fans; five actors who've played the Doctor in the long-running British sci-fi series are uniting for an audio drama to be released in November, in celebration of the series' 50th anniversary.

Tom Baker (pictured), Peter Davison, Colin Baker, Sylvester McCoy and Paul McGann — aka, Doctors four through eight — are all participating in the 100-minute drama, dubbed "Doctor Who: The Light at the End." According to Big Finish, which is producing the drama, the story will present a scenario in which the assembled Doctors' "paths suddenly intersect when they face imminent destruction."

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A number of the Doctors' companions are also coming along for the ride. Louise Jameson, Sarah Sutton, Nicola Bryant, Sophie Aldred and India Fisher will be reprising their roles from the series.

On the villain front, Geoffrey Beevers is coming back to play renegade Time Lord the Master, "and there will be a number of appearances from some much-cherished old friends from the TV series,"' according to producer David Richardson.

The Doctor is currently played by Matt Smith, the 11th actor to portray the role.

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While the first three Doctors from the series — William Hartnell, Patrick Troughton and Jon Pertwee — have died, "Doctor Who" actor Nicholas Briggs, who's writing, directing and executive-producing the drama, says that they will play a part in the anniversary adventure.

“We wanted to do a proper, fully-fledged multi-Doctor story for this very special occasion,” Briggs said, “and it’s wonderful that all the surviving classic Doctors threw themselves behind the project so enthusiastically. That’s not to say the first three Doctors don’t appear – we wanted to pay homage to the whole history of the classic series.”

"Doctor Who: The Light at the End" will come in two versions. A five-disc, special limited edition will include two hour-long documentaries, along with the Companion Chronicles story "The Revenants," which is performed by "Doctor Who" actor William Russell, and cast photographs. A standard two-disc version will also be available.

In addition to "The Light at the End," BBC Two has commissioned an origin movie, "An Adventure in Space and Time," which will "tell the story of the genesis of 'Doctor Who'" and "look at the many personalities involved in bringing the series to life."

The 90-minute special is being written by "Doctor Who" writer/actor Mark Garliss, with showrunner Steven Moffat and executive producer Caroline Skinner executive-producing.

