Nekkistani

The Nekkistani were a time-active faction who had dealings with the Time Lords. They belonged to the Temporal Powers.

History
The Nekkistani joined the Temporal Powers alliance along with the other time-active factions, due to the events on planet Archetryx. (BFA: The Apocalypse Element)

The Nekkistani managed to learn about an incident in the history of the Monan Host. (BFG: Square One)

They were led by an Emperor. (BFG: Imperiatrix)

Technology
A Nekkistani time cruiser was aquired by Davros, who used it as bait for the Doctor in the time vortex. (BFA: Terror Firma)