The Annihilators are a short-lived team of space heroes appearing incomic books published by Marvel Comics. They are a group of powerful space-based characters from various alien races. They act to protect the cosmos from intergalactic wars and villains.
After a string of galactic-level threats (the Annihilation Wave, the Phalanx's Conquest of the Kree, the War of Kings, and the Cancerverse invasion), Cosmo the spacedog tries to fulfill the dream of his presumed deceased friend and former Guardian of the Galaxy, Star-Lord, by assembling a proactive team to stop threats before the universe is in danger. He recruits the most powerful individuals he knows: the humans Quasar and Nova, the Kree Ronan the Accuser, the Shi'ar Gladiator, the Korbinite Beta Ray Bill, and Herald of Galactus Silver Surfer. Each of them is initially resistant to the idea, but agree to join after they work together to defend Kree territory from Blastaar.
They are joined by the Galadorian Spaceknight Ikon (an homage to Rom the Spaceknight), who needs their assistance protecting her planet from Doctor Dredd. After fending off Dire Wraiths and Immortus, they ultimately reveal Doctor Dredd to be a skrull spy.
Later, while trying to end a conflict between two factions of the Universal Church of Truth, the Annihilators learn of a plot to revive the evil Magus. They travel to Earth where the resurrection is happening, but are unable to prevent it due to a conflict with the Avengers, who mistake the Annihilators for an invasion force. Quasar, Ikon, and Spider-Man discover the Magus has emerged from his coccoon in the form of a young boy. The Magus attempts to possess other humans on Earth, but Gladiator, Quasar, Ronan, and Iron Man are able to trick him back into his coccoon. The Annihilators take custody of the cocoon.
Later they attempted to stop Thanos and the ressurected Adam Warlock while they were investigating on a mysterious cosmic inbalance, due to a misuderstanding as the Annihilators tought Thanos was up to no good, but they got easily defeated by the Mad Titan and the Golden Avenger.
The team seems to be currently disbanded for unknown reasons.