Personal Info:
Real Name: Leonus
Also Known As: No known Alias
Place Of Birth: Attilan
First Appearance: Incredible Hulk Special Vol.1 #1 (1968) Silver Age Villain
Known Associates: Maximus, Aireo, Falcona, Makus, Nebulo, Stallior, Timberius
Group Affiliation: Crimson Cadre, League of Evil Inhumans
Base Of Operations: Attilan
Grudges: Inhumans
Creators: Gary Friedrich and Marie Severin
Enhanced Abilities: Leonus has super human strength, agility, speed durability and endurance.
Claws: Leonus has metal claws worn on his hands and feet with ankle spikes on his boots.
Leonus is a member of The Inhumans, they are a race of beings that split from the human race 25, 000 years ago after the alien race called the Kree began to experiment on Earth's then-primitive Homo sapiens to produce the genetically advanced Inhuman race.. Although their experiments were successful in creating a strain of humanity with extraordinary abilities. the Kree abandoned their experiment because a genetic prophecy had predicted that the experiments would eventually lead to an anomaly who would destroy the Kree Supreme Intelligence.. When the Kree left the Inhumans were left on Earth.
Their test subjects, the Inhumans, went on to form a society of their own, which thrived in seclusion from the rest of humanity and developed advanced technology. Experiments with the mutagenic Terrigen Mist (a process known as Terrigenesis) gave them various powers, but caused lasting genetic damage and deformities.
Leonus at Marvel Database
Leonus at Comic Vine