Cryogs

The Cryogs are a shape-shifting alien race that appears in the IDW comic series Godzilla: Rulers of Earth.

History
The Cryogs come to Earth in order to conquer it. They initially have a shaky alliance with the Devonians to conquer the planet together and partition it equally. The Cryogs' leader intends to betray the Devonians after they outlive their usefulness. The Cryogs retrieve Gigan following his battle with Kumonga and upgrade him. After the Devonians' plans fail, the Cryogs deploy the upgraded Gigan to retrieve the Millennian UFO from Area 51. Gigan and the UFO proceed to Las Vegas, where Godzilla is waiting for them. Gigan pins down Godzilla and allows the UFO to absorb his DNA and become Orga. M.O.G.U.E.R.A. arrives to even the battle, but Orga and Gigan begin to overpower Godzilla and M.O.G.U.E.R.A. Unfortunately for the Cryogs, Orga goes out of control and attempts to eat Gigan. Suddenly, Jet Jaguar arrives and flies down Orga's throat, then grows and causes Orga to explode. Godzilla and Jet Jaguar double-team Gigan until he is forced to retreat. The Cryogs beam Steven Woods and his partner Chavez onto their ship in an attempt to kill them, but many of them are killed by Woods and Chavez's Zero Cannons. Jet Jaguar flies onto the ship and kills several more Cryogs and damages the ship while rescuing Woods and Chavez. The Cryog leader tells the Devonians to prepare for their ship's arrival so that it can be repaired, but are instead met by the Devonians' latest creation, Biollante. Biollante proceeds to tear the Cryogs' ship apart, seemingly killing all of them.

The Cryog leader actually survives the battle and takes the form of a Devonian, pretending to be a refugee who is resisting his race's conquest of Earth. He cooperates with CKR and gives them vital information in destroying the Devonians' capital. After the Devonians are eliminated, the Cryog leader kills Dr. Anders and begins his plan to get revenge on Godzilla.

Four years later, the Cryog leader is pretending to be a wealthy Russian warmonger and has acquired the assistance of the psychic twins Minnette and Malorie. Using their mind control capabilities, he convinces world leaders to purchase mass-produced MechaGodzillas to fend off kaiju attacks, hoping that it will eliminate any monsters that could resist his invasion. He sends a MechaGodzilla to Antarctica to ambush Anguirus. The MechaGodzilla almost manages to kill Anguirus, but is recalled after its firepower is demonstrated. When Godzilla appears in Boston, the Cryog leader sends an entire fleet of MechaGodzillas to kill him once and for all. When Godzilla destroys most of the MechaGodzillas, the Cryog leader sends his latest monster pawn, Mecha-King Ghidorah, to battle him.