Namor

Namor, also known as Namor McKenzie and The Sub-Mariner, is a character from the Marvel comics.

Namor is the ruler of undersea Atlantis. The offspring of a sea captain and an Atlantean princess, he has been both a hero and a villain to the surface world.

Personality
Namor is the original "hotheaded" character in the Marvel cast of characters. He has been shown to act very impulsively with a short temper. Other times he can be quite civil. Caleb Alexander hypothesized in Namor, the Sub-Mariner that Namor's mood swings might be due to his hybrid nature, and more specifically an oxygen imbalance in his blood, that could be remedied by spending equal time above and below the waves. However, there is evidence to suggest Alexander's theory is not completely sound, and seems to ignore the Namor's upbringing and social status in Atlantis.

Abilities
Atlantean/Mutant Physiology:  Due to Namor's unique Atlantean and mutant physiology, he possesses all the powers of most Atlanteans such as breathing under water, enhanced physicals and extended life spans, as Namor is over 90 years old but still in his prime. Namor's abilities, however, are much greater than your standard Atlantean. It should be noted that all of Namor's abilities decrease the longer he is dehydrated, removed from water, and has shown things such as extreme heats can weaken him quicker.

Superhuman Strength:  Namor is easily one of the strongest beings on the planet, and is considered to be one of the most powerful mutants. He has thrown hundreds of thousands of tons such as seacraft carriers with ease, shaken entire islands with his blows, and created shockwaves while clashing with other powerhouses. As of late, his strength seems to have been further enhanced to an unknown degree, enabling him to simultaneously and single-handedly stop attacks from both Thor and Iron Man at the same time with no visible strain while underwater.

Superhuman Speed/Reflexes:  Namor is capable of moving at superhuman speeds, being capable of dodging bullets, moving faster than the eye can follow in short bursts and has even dodged sonic attacks before. He is, however, faster in the sea and has shown he can create whirlpools by swimming in circles and has been clocked in at 300 knots.

Superhuman Durability:  Namor's body is incredibly durable, being able to survive the pressures of the depths of the sea. He is completely bulletproof and fireproof to a degree. He has taken blows from Thor, Hulk, Hercules, the Thing, The Sentry and so on and has kept fighting. He has shown to be capable of tanking titanium cutting lasers with virtually no damage. Things such as adamantium, vibranium or the ebony blade have been shown to cut him, however. His body's durability has been further increased to an unknown degree as he has recently no-sold attacks from Carol Danvers and an amped up She-Hulk with no visible damage on his part while underwater.

Undersea Animal Mimicry:  Namor also has the ability to channel the powers of any aquatic life in the sea. For example, channeling the power of an electric eel and shooting electric bolts from his hands. He has also used radar powers like a blind fish to see Sue Storm whilst she was invisible. He also has marine telepathy although he rarely uses it and displays this ability he can control sea life to a certain degree.

Magical Blood:  All Atlantean magic flows from Namor, their king. His royal blood also is a magic ingredient that can be used in spells.

Hydrokinesis:  Namor currently possesses hydrokinesis after Atlantis kidnapped Hydro-Man and siphoned off part of his powers. Namor is capable of casually flooding cities with his new power.

Mutant Power
Namor's mutant power are the wings on his ankles which appear to allow him to fly and his greater degree of strength. Namor was actually the first comic book character with the power of flight, already flying in his second comic book appearance in Marvel Comics #1, while all other contemporary characters like Captain Marvel, Superman and Wonder Woman only could leap great distances and didn't fly canonically until several months later.

His skin is very resistant to any physical damage, he can resist bullet fire with ease and is fireproof.

Skills
Due to Namor's extended lifespan and fighting in many wars and battles, he is a seasoned hand-to-hand combatant and experienced diplomat and a fine king. These skills have earned him the respect of his colleagues, no matter which side he was on, and fear of his enemies. He is also a capable weapons user having wielded his trident, swords and spears efficiently. Namor's preferred method of combat is engaging his opponents in hand-to-hand combat.

Trivia

 * The reason why, according to Kevin Feige, Namor wasn't featured in the MCU, is due to complications surrounding the character's film rights. This is because the character became heavily associated with the Fantastic Four over the years, meaning his rights could lie with Fox... and also because of Marvel's own push of Namor as a mutant, which ties in to the X-Men franchise, whose film rights also belonged to Fox. Once Disney acquired Fox, this became a non-issue.
 * Bill Everett originally intended for all of the Sub-Mariners to be green with only Namor being "flesh" coloured. Under Stan Lee, this came to be, except the Atlanteans, as they came to be called and have been ever since, are blue.