Cosmo

Cosmo was once a test animal in the Soviet Space Program, launched into orbit during the 1960s as part of an early space experiment. His craft drifted off-course and disappeared into deep space, eventually reaching the celestial outpost known as Knowhere. During his long drift, cosmic radiation mutated him, granting powerful psionic abilities. After arriving on Knowhere, Cosmo became its Chief of Security, protecting travelers who passed through the decapitated head of a dead Celestial.

Cosmo first crossed paths with Nova after a member of the Luminals, Suspensor, transformed into a zombie. He explained to Nova the nature of Knowhere and helped him decipher a mysterious countdown marking a cosmic end-times event. He revealed that most inhabitants had been hidden within a dimensional pocket stored in his collar after the Luminals brought a dangerous entity to the station. Zombies soon attacked, and Cosmo fought alongside Nova to identify the creature responsible: Abyss. Together, they managed to seal Abyss back inside its container.

He later attempted to aid Nova by helping him locate a cure for the Transmode Virus on Kvch, guiding him through Knowhere’s Continuum Cortex. However, Phalanx-controlled Gamora and Drax broke through defenses and slaughtered many residents while attempting to pursue Nova, arriving ahead of Cosmo before he could stop them.

When the Guardians of the Galaxy first formed, Nova recommended Knowhere as their headquarters. Cosmo welcomed the team, assisted them with the Continuum Cortex, and became a trusted advisor, even suggesting names for them like “The Retrievers” and “The K-Nine.” During the Thanos Imperative, when the Cancerverse invaded, Cosmo remained on Knowhere as the Guardians fought alongside Thanos. After Star-Lord’s death, Cosmo honored his final request: assembling the most powerful defenders in the universe. He recruited Silver Surfer, Gladiator, Beta Ray Bill, Quasar, and Ronan the Accuser, forming the Annihilators.

During the Annihilators’ earliest missions, Cosmo coordinated their efforts, including addressing breaches in the Dark Nebula and threats from sentient cosmic anomalies. When Ikon of the Spaceknights inserted herself into the team, Cosmo continued providing oversight and mission briefings, including their assignment to intercept Dire Wraith activity. He welcomed them back after successful missions—though celebrations were short-lived due to escalating crises such as a sentient black hole attacking Galaxy K-123.

Cosmo later traveled with the Annihilators via the Continuum Cortex to combat the Universal Church of Truth’s assault in the Gulf of Sidris. His final known ordeal came when Captain Skaarn seized control of Knowhere. Skaarn poisoned Cosmo and implanted a device to suppress his telepathy. A young Nova used the Nova Force to purge the poison and remove the foreign object, ultimately saving Cosmo’s life.

Appearance: Cosmo has light brown fur, smooth and short across his body with slightly darker shading around the muzzle, ears, and along the top of his head. His eyes are dark and alert, set beneath a broad canine brow that gives him a focused, intelligent look. His ears hang in soft folds on either side of his head, matching the warm brown tone of his coat. He wears a full white spacesuit that covers his entire body except for his paws and tail. The suit has segmented panels and reinforced seams running along the legs, chest, and sides, giving it a sturdy, insulated appearance. The collar of the suit is thick and red, fitted securely around his neck and supporting the transparent dome helmet enclosing his head. His paws are large and sturdy, each with visible claws, and his tail extends straight out from the back of the suit, left uncovered.

Personality: Cosmo’s personality is warm, loyal, and proudly authoritative, blending the instincts of a protective guard dog with the sharp, disciplined mind of a seasoned psychic. He speaks with a direct, straightforward confidence, often mixing firm professionalism with dry humor or affectionate grumbling. As Chief of Security on Knowhere, he takes his duties seriously, showing a strong sense of responsibility, fairness, and protectiveness toward anyone under his watch. He is patient but vigilant, quick to sense danger, and even quicker to intervene when someone is threatened.

Despite his military discipline, Cosmo’s kindness shows through in small ways—gentle encouragement, steady reassurance, or a quiet, watchful presence. He values respect and honesty, responds strongly to praise or trust, and forms deep bonds with those who treat him as an equal rather than a novelty. Beneath his calm authority is genuine warmth, a desire to help, and an unwavering loyalty that makes him a steadfast ally and a comforting presence in crisis.

Cosmo possesses extremely powerful telekinesis, capable of precise manipulation and large-scale force. He can generate solid telekinetic force fields strong enough to withstand energy blasts and physical impacts. Alongside this, he wields advanced telepathy, allowing him to read, influence, and attack minds across a wide range of species. His telepathic defenses include cloaking his presence from other psychics, extending that concealment to allies, and creating mental shields that protect against psychic or energy-based intrusion. Cosmo is also able to project illusions, alter perceived appearances, camouflage others, and impose a false reality on targets. His telepathic manipulation allows him to control thoughts and actions, induce paralysis, erase memories, or keep unconscious beings sedated. He can generate psionic blasts that disable foes by targeting their minds directly, and he can detect the mental signatures of other sentient beings within a certain radius.

Cosmo ages far more slowly than a normal dog, retaining youthful health despite being decades older than his natural lifespan would allow. His natural canine physiology grants heightened senses, which are further sharpened by his psionic development. Despite his strengths, certain poisons are capable of dampening his psychic abilities, and extremely powerful psychic events can overload him, as seen when Adam Warlock briefly became the Magus and caused Cosmo’s own mind to bleed under the pressure.

For equipment, Cosmo typically wears a white insulated spacesuit with a dome visor and occasional small storage compartments. Attached to his collar is a tesseracted storage crystal chip crafted in a Knowhere laboratory, capable of storing the entire population of Knowhere instantaneously within a compressed dimensional space.