Shakri
According to Time Lord legend, the Shakri were the “pest controllers of the universe”
Biology
The Shakri appeared to be humanoid with a bald and withered head.
Culture
The Shakri were apparently led by “the Tally” but this is not confirmed. The Tally lead the Shakri to eliminate species that the Shakri considered pests. They always traveled in groups of seven and their cubes counted down from seven.
Technology
The Shakri relied on small black cubes for reconnaissance and attack. When activated, these cubes had a wide variety of functions but eventually changed to stop human hearts.
They also used seven ships in another dimension to coordinate their attacks. The ships were connected via wormholes to seven different locations on Earth. These wormholes were monitored with droids disguised as humans. They also had minions which looked human except for their grill mouths.
Appearances
The Power of Three (TV)