A man has a bloody nose in a bathroom, and is seen with blood under his nose for the rest of the scene.
A woman threatens to chop her fingers off.
After the punk rock concert, a fight is seem breaking out and people are seen swinging and grabbing at each other.
There are a few relatively graphic brain surgery scenes.
A mans head is bashed with a metal baseball bat. Blood is seen on the bat. A huge puddle of blood is shown as the man is dragged away.
A man bites into another mans shoulder, no wound is shown but blood is shown on his shirt.
An oil painting of a gory fight between a dozen people is examined up close. There are bloody stabbings and even someone eating a man's heart. It is disturbing.
A man is seen stumbling down the street and into a gas station, all the while dazed with blood all over his nose/mouth area. He runs his hand along a row of coolers and leaves a smear of blood on the glass before collapsing. The man is later seen standing with some police and paramedics, still bloody, before collapsing again. It is later confirmed that he died.
A character drills into a cadaver's head, though the scene is not very graphic. There is no blood and most of the action is obscured.
Some scenes have blood in it, but the violence is spread out and is infrequent.
A character is almost murdered. No blood (drowning).
Season 2 ending contains Severe Violence. Its The most violent episode of The series.