Mordin Solus was born sometime in the 2150s, he is an expert geneticist, doctor, scientist and a former member of the salarian Special Tasks Group. His last mission in the STG before retiring involved the study of the krogan genophage. In 2185, he is recruited by Commander Shepard to assist in a high-risk mission against the Collectors. Mordin has a moral character best described as consequentialistic, believing the ends justify the means, though he dislikes taking life without good cause. His actions are often guided by an impersonal logic, refusing to let his conscience, personal, and emotional connections cloud his judgment of what he believes is truly best in the big picture. Though he is affable, quick-talking and friendly, Mordin bears physical scars of his time in the STG and is still handling the consequences of his past. Appears in ME2. Reapers in ME 3, provided he survived Shepard's attack on the Collector base in ME 2. -masseffect.wikia.com