Characteristics
Michael is described as "always scanning the surroundings", and "has the silky voice of a sociopath (and) the resigned stance of a long-distance runner" and projected an unflappable determination that confounded his fellow prisoners, as, being close to Abruzzi or T-Bag or Bellick, he could not afford to be vulnerable or even appear human. Later, following the escape, Michael, now off with his brother, around whom Michael was willing to show a side of himself that he was not with the others, began showing a side of himself; something that is lighter and more colorful. However, Michael often is outwardly taciturn and stoic, rarely allowing the dangerous element he's frequently surrounded by to penetrate his thoughts. Michael has been clinically diagnosed with low latent inhibition, a condition in which his brain is more open to incoming stimuli in the surrounding environment. As a result of this condition, he is unable to block out periphery information and instead processes every aspect and detail of any given stimulus. This, combined with a high IQ (as a psychiatrist explains) theoretically makes him a creative genius. His intelligence is well noticed even by his enemies e.g. with Mahone in Season 2 making various comments about Michael's intelligence, even holding a certain admiration to him after successfully breaking out of 2 prisons (Fox River & Sona). He is even offered a place in The Company.
Due to a feeling of abandonment and abuse during childhood, Michael developed and has very low, or absolutely no sense of, self-worth. With the low latent inhibition, this has made him become very attuned to all the suffering around him. As a result of being unable to block out other people's suffering, he is extremely empathetic and altruistic towards other people's emotions; This explains Michael's desire to make huge sacrifices to help others – he is more concerned with other people's welfare than his own. This particular attribute is apparently the product of his detrimental experience during childhood, where, as a child, his abusive foster father would often beat him and have him locked up inside a closet; and by doing so, Michael's eyes begin to adjust to the darkened environment, allowing him to scan objects around him which he can use for his own convenience.
Michael had a very strong moral sense and was cool and reasonable. He knew that if he or his allies turn to kill rather than subdue their enemies, they will gradually lose themselves and eventually everything. Bellick, "T-Bag", Whistler and overall Gretchen, all people with much blood on their hands are only alive or survived as long as they did because Michael spared them.
Michael's enhanced creative ability allowed him to design a tattoo with a hidden blueprint of Fox River Penitentiary that normal people couldn't discern. Over the course of four months, Michael had specific sections of the prison tattooed onto his upper body, hidden within gothic imagery. Each part of his tattoo had to be precise, which provoked the tattooist's comment to Mahone about Michael being a "detail Nazi" and that the tattoo was "some sort of inside joke" that only he got.
Michael was also shown to be meticulous and well-prepared as he used his knowledge and intellect to achieve each step of his escape plan. With time, however, Michael developed (or was possibly was born with) improvisation techniques. Tossed into Sona, he developed an escape plan, which ultimately fails. The failure leads to another escape plan which Michael realizes is a threat to his and Lincoln's safety, and stops it. After he escapes Sona and brings down the Company Michael orchestrates from the outside a plan to break Sara out of prison in a relatively short amount of time. The plan is successful but costs him his life in the process. This event is present in the movie Prison Break: The Final Break.
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