Sebastian is a man in his mid 20s with the lean build of a man that has lived an eventful life. He has black hair messily slicked back, he's got blue gray eyes that are colored with a hint of sadness and anger completed with dark bags under his eyes. His lips are almost perpetually wrapped around a cigarette unless he's at, for example, a crime scene. A weak smell of liquor can often be sensed around him, with exceptions. Detective Stahl dresses himself nice enough to look reputable and to make up for his other flaws but not nice enough to push away the civilians he reluctantly needs to question.