A humanoid species naturally resistant to the radiation of neutronic storms, whose corrupt militia pursued three deserters aboard Enterprise NX-01 while the crew sheltered in a warp nacelle in 2152.
The Takret are a humanoid species whose bodies tolerate the radiation of a neutronic wavefront that would kill humans within minutes. They are ruled in part by the Takret Militia, a force with a reputation for seizing ships and killing their crews.
In the Enterprise episode The Catwalk, three Takret come aboard Enterprise NX-01 to warn of an approaching storm and take shelter with the crew in the maintenance catwalk of a nacelle. They turn out to be deserters from the militia, and a Takret ship boards the apparently empty Enterprise to hunt them down.
Archer bluffs the boarding party into leaving by threatening to destroy the ship in a plasma eddy, and the deserters go on their way once the storm has passed.