Mister Sinister
Real name: Nathaniel Essex
Full name: Dr. Nathaniel Essex
Aliases: Sinister, Robert Windsor, Arnold Bocklin, Mike Milbury, Apocalypse, Steven Shaffran, Edmond Atkinson, Nate, Administrator Pearson, Nosferatu, Nathan Milbury, Pale Man 
Creator: Marvel Comics
Alignment: Bad
First appearance: Uncanny X-Men #221 (September, 1987)
Place of birth: London, England 
Occupation: Geneticist, Criminal, biologist and mutant-supremacist
Base: Many bases throughout the world including his State Home for Foundlings and the Center for Homo Superior Medical Care.
Teams: Frightful Four, Nasty Boys, Marauders, Weapon X, Third Reich
Relatives: Rebecca Essex (wife, deceased), Adam Stanislaus Essex (son, deceased), N2 (creation, deceased), Madelyne Pryor (creation, deceased), Claudine Renko (clone "daughter")
Gender: Male
Race: Human / Altered
Height: 6'5 • 196 cm
Weight: 285 lb • 128 kg
Eye color: Red
Hair color: Black
Superpowers: Accelerated Healing, Animal Attributes, Animal Oriented Powers, Duplication, Durability, Energy Blasts, Flight, Force Fields, Intelligence, Longevity, Mind Blast, Mind Control, Molecular Manipulation, Power Nullifier, Reflexes, Self-Sustenance, Shapeshifting, Size Changing, Stamina, Super Speed, Super Strength, Telekinesis, Telepathy, Teleportation
Stats: intelligence 100, strength 50, speed 45, durability 90, power 100, combat 50

History:
During the 19th Century, Nathaniel Essex encountered Apocalypse who used his technology to transform Essex into “Sinister”, the last word his dying wife ever spoke to him.  Soon after, a time displaced Gambit and Courier approached Sinister for help. Sinister agreed to help them, as long as he could have a DNA sample from Courier. This DNA sample allowed Sinister to replicate Courier shape shifting abilities, within Sinister’s own body.  By the early 20th Century, Sinister had cracked the genetic genome and was willing to share the information with Herbert Edgar Wyndham, who would later become the High Evolutionary.  During World War II Sinister worked alongside the Nazis, collecting as many blood samples as he could. It was during this time that he first saw Sub-Mariner, and was inspired to create a clone of Namor. The clone was experiment N2 and had varied success against the original Namor but was defeated by Captain America.  Some time later, Sinister recruited Gambit to gather together the Marauders and ordered the massacre of the Morlocks. Sinister cloned Jean Grey in the form of Madelyne Pryor, so that Cyclops would have a child with her, which Sinister would view as the ultimate mutant. Ultimately, Cyclops rejected Pryor when Jean returned from stasis, and the youth would be carried to the future, where he would return to present era as Cable. Sinister's machinations would lead to the event known as Inferno, where Cyclops supposedly killed Sinister with an optic blast, although Sinister resurfaced alive and well, when he revealed that there was a third Summers brother.  Sinister was involved in Stryfe's attempted assassination of Xavier,, trading Cyclops & Jean Grey to Stryfe in exchange for their DNA. However, Stryfe actually gave Sinister the Legacy Virus, which would terrorize mutant (and eventually human) life, and lead to the deaths of several mutants.  Sinister later involved himself with Nate Grey and the mutant Threnody. He joined the reestablished Weapon X program as Doctor Robert Windsor, claiming to help mutants escape Weapon X's mutant concentration camp "Neverland," but in reality, he took them to be his test subjects.

Powers:
  Following genetic alteration by Apocalypse, Sinister possesses a wide array of powers. Over the years, Sinister has used the genetic material of other mutants to grant himself a vast array of powers. He has been stated to be an Alpha-Level Mutant.   Mister Sinister possesses the ability to control every molecule of his body, allowing him to assume the form of any one he wishes. He once reduced himself into a semi-liquid state. He has total control of his body allowing him to control his muscles (and even his pain). He can also create weapons or clothing from his body, assume the forms and abilities of animals, and also divide himself in multiple forms. Enabled via Implanted X-gene taken from the bio-molecular meta-morph Courier.   Mister Sinister is able to rapidly regenerate damaged or destroyed tissue with much greater speed and efficiency than an ordinary human. Sinister can fully heal from injuries that result in massive tissue damage or loss such as multiple gunshot wounds, slashes, puncture wounds, broken bones, and severe burns within a matter of moments. It is unknown if he can regenerate missing limbs or organs, but his healing factor has been compared to that of Wolverine and his healing factor has allowed him to reconstruct his body from almost nothing so his feats suggest that he can.   Mister Sinister's muscles produce considerably fewer fatigue toxins than the muscles of ordinary humans. He can exert himself at peak capacity several hours before fatigue begins to affect him.   Mister Sinister is capable of running at speeds far greater than those of the finest human athlete. His speed can be further enhanced by the use of his ability to fly.   Mister Sinister's muscles and tissues are far more durable than those of an ordinary man allowing him to resist gunshots, physical damage, shocks and energy blasts. However, he has been hurt by Cyclops´s blast in the past. His durability can be enhanced by his regeneration ability, telekinesis, and force fields.   Mister Sinister possesses superhuman strength, which may be a product of his shape-shifting. Sinister is able to press lift within 2 to 10 ton range, perhaps more. He can also access his telekinesis to enhance his physical strength.   Sinister's reflexes and agility are enhanced to levels that are beyond the human body's natural limits.   He can read minds and project his own thoughts into the minds of others within a radius of 250 miles (on Earth). With extreme effort he can greatly extend that radius. Mister Sinister is resistant to other's telepathic powers. His clone, Miss Sinister, posessed telepathic powers that could match those of Emma Frost, making Sinister one of the most powerful telepaths in the world, manifesting the following abilities:   He has the ability to induce temporary mental or physical paralysis and project pain into the minds of others.   He is capable of controlling the minds of others, but only one at a time and if the target is in his physical presence. He can also manipulate memories, creating new ones or erasing others, such as he as done with his clones and also alter perceptions and appearances.   He has the ability to mentally paralyze a foe he's touching and the ability to psionically "turn off" the superpowers of any mutant, creating a mental block. He can also create mental links with others and even to objects and locations like the bases he has used over the years.   He possesses telekinetic abilities enabling him to levitate and psionically manipulate living beings, inanimate objects, and to some extent energy. He can “lift” as much as 10 tons of weight and possibly even more and can achieve other effects.   Mister Sinister can fire blasts of concussive force from his hands, eyes or from the diamond-shaped scarlet mark on his forehead. These blasts are powerful enough to match Cyclops´s energy blasts at their full power for a considerable period of time and have a great destructive power.   Mister Sinister can erect multiple force barriers to repel, reflect and defend against incoming onslaughts, they are potent enough to stand against Cyclops's optic blasts with ease. He normally uses them on a personal level but it is assumed he can not only increase and decrease the protection level but also enhance the size of the shield to englobe others and even entire areas.   Sinister has shown he can use his telekinesis on himself to accommodate flight, his top speed is unknown.   Mister Sinister has exhibited the ability to teleport over large distances, however Beast believes this is a function of his headquarters and this fact remains to be cleared.   Mister Sinister is able to directly interface with various technologies he has at his disposal.   Mister Sinister is functionally immortal in the sense that he is immune to aging and disease and he can rapidly regenerate almost any damaged bodily tissue. However, it was possible for him to be killed. He also doesn't require food, water, or even air to breathe and can survive indefinitely in a complete vacuum. This ability originated from his healing factor and from his exposure to Celestial technology from Apocalypse    Mister Sinister is a genius with expertise in various fields of science, mainly genetics with years of his research at his command, mutations and their powers, human and alien biology, cloning, all levels of physics, engineering (including mechanical, genetic and electrical engineering) and more. His intellect has been said to match Reed Richards and Doctor Doom and he is one of the smartest people on Earth. Sinister, having lived for over 150 years has acquired vast knowledge over many known fields, being a formidable scientist and a talented inventor. Considered the most brilliant mind of his time, Dr. Essex was already a genius with a PhD and an M.D and other honors in biology and genetics and was a member of the British Royal Society. His intellect later grew to new levels after his time with Apocalypse and the advanced Celestial technology he had access to, mastering not only this and all technology from Earth (allowing him considerable expertise in cybernetics, robotics and computers) but also new sciences to aid him in his goals to create the perfect mutant.   Mister Sinister is a genius and a geneticist of the highest order, able to predict genetic mutations and splice DNA. It is quite probable his powers are the result of self-experimentation - his shape-shifting power is due to a procedure he performed on himself with help from a time-traveling Gambit. He can also produce large amounts of clones; he has done so with all his Marauders, and with Jean Grey and he is an expert on the art of cloning and also on mutants, with vast knowledge of powers, genes and more due to the hundreds of samples of mutant DNA he has access to. He is normally described as the world's greatest geneticist and along with Professor X, is one of the leading authorities on mutants of the entire world.   He is a master surgeon, having excised a portion of Gambit's brain, only to later restore it (although from Sinister's point of view, he restored a portion of Gambit's brain and later excised it, as Gambit was traveling back in time when the restoration was completed; possibly a predestination paradox). Besides this area he is also a skilled doctor, one of the best from his time in England with honors in medicine and later in biology.   having created devices that seem to have been taken from the tales of Jules Verne, his inventions include advance ships, devices that negate all mutant powers except for his own or transfer them, perform healing and almost resurrection, teleportation, genetics, project energy blasts and other attacks using mutant powers from many of the X-Men, aircraft and many more. Although his inventions are not as spectacular as those of Iron Man, he is a very talented inventor and engineer with a skill rivaling that of Iron Man among many others.   He possesses a good deal of knowledge in psychology, and is a skilled manipulator, being able to conceive others with simple words and facial expressions. Mister Sinister is also a capable leader and a master strategist, capable of creating plans with ease and even outmatch brains like those of Professor X, Cyclops, Apocalypse, Storm and Magneto, being several steps ahead of his opponent.   Mister Sinister trained himself in martial arts and unharmed combat, capable of defending himself from stronger opponents and even other trained combatants.