Sontaran
From Tardis Wiki, the free Doctor Who reference
A clone race, the Sontarans are humanoids with large, bulbous heads and stocky bodies. Their hands have two fingers and a thumb.
The Sontarans have achieved crude time-travel technology which is effective though not on par with the Time Lords.
The Sontarans are engaged in a destructive war with the Rutans, a race of jellyfish-like aliens capable of storing and discharging enormous amounts of electricity, and changing their appearance to appear humanoid.
The Sontarans have appeared in the following Dr. Who episodes:
