Solidus Snake

Solidus Snake is one of the three "Sons of Big Boss", created as part of the Les Enfants Terribles project. In the project, one of the clones was to carry all of Big Boss' recessive genes (Solid Snake), one was to carry all of his dominant genes (Liquid Snake), and one was to be an exact copy of Big Boss (Solidus)

Background
The early years of Solidus Snake is unknown, the earliest bits we can piece together is that at one point he adopted Raiden and taught him to be a ruthless killer often referring to him as "Jack the Ripper" for his outstanding ability to kill.

Solidus was also the President at one point in the timeline of MGS, he was known as George Sears while he was in presidency, and acting outside the orders of The Patriots he started the Shadow Moses incident in complete secrecy, telling Ocelot to persuade Liquid into stealing Metal Gear REX and using for his won twisted ways. But because Solidus accidentally revealed the existance of Metal Gear REX and the Genome Army he was removed from Presidency and went underground and decided to head Dead Cell as a way to gain power and destroy The Patriots.