Blackmailer

The blackmailer is a krogan who works for Armistan Banes. He is blackmailing Dr. Michel by threatening to unveil her "little secret" unless she forks over some medical supplies. This event takes place during the assignment Citadel: Doctor Michel.

Overview
After Dr. Michel tells Shepard about the situation, Shepard agrees to go speak with the doctor's contact, Morlan. When Shepard asks Morlan about the doctor, the blackmailer reveals himself. Shepard can use Charm or Intimidate to resolve the situation or kill the blackmailer.