This category is only for things that are a part of other realities. If you are looking for people, please see:

• alternative timeline individuals, for people from those stories that are set in universes this wiki considers to be parallels or alternatives to the main universe in which the Doctor has his adventures
• non-DWU individuals, for people from those stories — such as, but not limited to, parodies — that are not considered, by application of this wiki's policy, to be set in any part of the broader multiverse that is DWU

“The Pre-Universe was the Universe, perhaps the most recent of many universes, that came...

Pre-Universe

“The Matrix was a supercomputer, a micro-universe used by the High Council of the Time Lords as a...

The Matrix

Time Vortex

Pete's World

Death Zone

“The legendary Dark Matrix was a repository of all the dead Time Lords' most evil, twisted and...

Dark Matrix

“The Void was what the Time Lords called the emptiness between universes. It was known to the...

The Void

After-Universe