Mordin Solus

"I help people. Sometimes heal patients; sometimes execute dangerous enemies. Either way helps."

Professor Mordin Solus is a doctor, scientist and and the first salarian to join Shepard's squad, appearing for the first time in Mass Effect 2.

Shepard first meets the fast-talking salarian in a currently unidentified location where he is working on a cure for a "plague", of which Mordin identifies the presence of the Vorcha as a symptom. After the Vorcha deactivate environmental systems for the district in which they are located, Mordin gives Shepard a cure for the plague as well as a weapon taken off of a dead Blue Suns mercernary as a "bonus, in good faith" and tasks him with reactivating the power to the environmental systems. He also requests that he find Daniel, one of his assistants who entered Vorcha territory searching for plague victims but hasn't returned.

He is described as "very smart, fast-talking and surprisingly brutal in his thinking" and being someone for whom the ends justifies the means. His distinguishing physical characteristics are his pale complexion, the dark tattoo on his forehead and his truncated right horn.