Kahler is a planet in the Doctor Who Universe. It is the homeworld of a technologically advanced species, the Kahler.
Not much information regarding the planet's geography is mentioned. Kahler-Tek states that he is from a place on the planet called Gabrean. Kahler-Jex states that he knows that area and says that it is beautiful there.
In the 19th century, half the planet was ravaged in a war against an unidentified enemy. It is stated that the war lasted for about nine years. The Kahler created an army of cyborgs that routed the enemy and ended the war within a week of their creation.
- Mentioned in Doctor Who Episode "A Town Called Mercy"
- Doctor Who Wiki: http://tardis.wikia.com/wiki/Kahler_(planet)