Produced for a charity TV special to celebrate the 30th anniversary of Doctor Who (1963). Licensing and copyright restrictions prevent this production from ever being broadcast again, although it is on the internet.
Kate O'Mara's final appearance as The Rani. However, O'Mara would reprise the role for the 2000 "Audio Adventures in Time and Space" production "The Rani reaps the Whirl Wind". Kate passed away on 30 March, 2014.
Jon Pertwee's final appearance as the Third Doctor. However, Pertwee would later provide the voice of the Third Doctor for the audio productions of "The Paradise of Death" and "The Ghosts of N-Space" and appeared as Doctor Jeremiah Kane in the spin-off video released film "The Zero Imperative" written by Mark Gatiss. Jon died on 20 May, 1996.
This story was broadcast as a segment of the Children in Need charity telethon, with part one being introduced by Noel Edmonds and Jon Pertwee (in character as The Doctor, and part two being broadcast as part of Edmond's "Noel's House Party" programme.
The Rani has not appeared in the revived series of "Doctor Who" and it is not known if The Rani had any part in the Time War and her current whereabouts remain unknown. However, in 2009, Former "X-Files" star Gillian Anderson was rumored to be taking the role of The Rani, succeeding Kate O'Mara for the revived series, alongside the new Doctor Matt Smith.
In the 13th "New Adventures of Doctor Who" novel "First Frontier" by David A. McIntee. The Seventh Doctor says "I once had a nightmare, where all my old foes chased me around a soap opera." This is most likely a reference to the events of "Dimensions in Time".
According to Louise Jameson, Sylvester McCoy arrived slightly late and slightly hung over for location filming, having had "a bit of a first night" the previous evening. During his absence, the other actors playing the Doctors reassigned several lines of "techno-speak" to him, saying "Sylvester can do this bit".
Allegedly, Anthony Ainley was approached by John Nathan-Turner to play the part of the Master in this short story, but he turned it down. Ainley, however, vehemently denied this, insisting that if he were asked, he would have had no hesitation in appearing.
An original draft of the script featured The Seventh Doctor meeting the Brigadier en route to a UNIT reunion - and becoming involved in a battle with a crashed spaceship full of Cybermen. The script was entitled Destination: Holocaust, and featured the Seventh Doctor and Brigadier holed up in a burning church, trying to fight off the advancing hordes of damaged Cybermen. This original idea, written by David Roden, was vetoed by John Nathan-Turner after it became apparent that Children In Need wished for the story to be a tie-in with EastEnders (1985). Despite loving the originally proposed script, Nathan-Turner also had concerns about the cost, which would have included several lengthy night-shoots and a much larger special effects budget.
The original plan for Doctor Who (1963)'s 30th anniversary was a feature film called 'The Dark Dimension'. Written by fan scholar Adrian Rigelsford and directed by Graeme Harper, the story was that of the alteration of time by an evil creature possessing a scientist named Professor Hawkspur and altering time so that the Fourth Doctor would not have died and regenerated during Logopolis. In doing so, the creature created a "Dark Dimension". The Doctor had to revert back the timeline before he and his future incarnations were erased from time by the effect. Rik Mayall, Brian Blessed and David Bowie were considered to play the main villain, Hawkspur. It would have focused on an older Fourth Doctor, with cameos from the surviving Doctors, as well as Ace, The Brigadier and spin-off companion Bernice Summerfield. It would also have featured the Daleks and the Cybermen with redesigns. It was cancelled due to scheduling and budgetary concerns. A main factor was that negotiations for what became Doctor Who (1996) were underway. Also, Jon Pertwee, Peter Davison, 'Colin Baker' (I) and Sylvester McCoy were unhappy that the story mainly focused on Tom Baker, while they had mere cameos.
During filming, Sylvester McCoy stood in the middle of Albert Square and yelled, "I don't understand why those BBC Enterprises people can't get us all together for love nor money, but when JNT makes a few calls, we're all here with our boots blacked - doing it for nothing! There must be something wrong!"
The trivia item below may give away important plot points.
The ending was originally longer, with The Doctor asking Ace where she would like to go now. She states "...when you set the TARDIS to go to the Great Wall of China, we end up in Albert Square." "Well in that case," The Doctor states, "Let's head for Albert Square."