Time Lord

The Time Lords were a civilization capable of time travel.

Technology
As their name suggested, the Time Lords possessed time travel technology, including TARDISes. They also had sonic screwdrivers.

History
The Time Lords were once well known to a number of alien races, but they were later wiped out and thought extinct.

However, there was one survivor of the Time Lords, known only as. 

Appendix
In Doctor Who, the Time Lords come from the planet Gallifrey, which is located in the Kasterborous constellation. In the Star Trek universe, the described a very similar civilization in the Kasteroborous galaxy, suggesting that Time Lords of the Trek universe hail from there.

Also in Star Trek, the Aegis occupy a somewhat similar role as the Time Lords, and their homeworld was described similarly to Gallifrey in the.