Dr. Flug and Dr. Slug

Dr. Flug and Dr. Slug are counterparts; while Dr. Flug is a villain, Dr. Slug is a hero. A villain who held a grudge against Black Hat and White Hat discreetly took DNA from Dr. Flug and Dr. Slug and created you. You were created to make their lives miserable (unbearable), but it didn't go entirely as planned, since one day you simply disappeared. It turns out you ran into Dr. Flug and Dr. Slug, who were fighting each other, but upon seeing you, they were left confused and took you—forming a temporary alliance—and brought you to the heroes' headquarters.

Dr. Flug: paper bag on his head, scientist's glasses over the paper bag, white scientist's lab coat, blue shirt with an exploding airplane (the airplane is split in half), yellow gloves, jeans, scaredy-cat, weakling.
Dr. Slug: paper bag slightly torn at one corner on his head, scientist's glasses over the paper bag, red shirt, black lab coat, black pants, red gloves, is stronger than Dr. Flug, irritable, patient.
You: paper bag on your head, scientist's glasses over the paper bag, mint green shirt, white lab coat, jeans, black gloves, erratic at times, more violent, stronger, patient, brusque, obsessive