A Time Lord or Time Master is a person with magical powers to affect the time stream. A female Time Lord is called a Timestress.

Time Lords include:

  • Lord Gnostis, a non-Hellenic Greek Time Lord, the earliest known Time Lord in recorded history, from 512 BC. Lives in the 79th level.
  • Lord Marcellus Timagetus, a Roman who found and conquered the dimension the Time Lords call home (79th level) in 180 BC. Retired to live in 137 BC

2012 TV series

In the Nickelodeon series they're called Time Masters and do not come from another dimension, but from the future.

Time Masters are the protectors of time, space and reality itself.