By the end of the series, Dexter is known to have killed over 130 people.
Arthur Mitchell, who was killing in cycles for at least 30 years, is possibly the most prolific serial killer by kill count (probably well over 200).
For work, he usually wears a collared, button-down shirt. When stalking a target, Dexter wears a military-inspired green (the manufacturer calls it "Army Green") 4-button Henley.
He also wears brown cargo pants and boots that resemble WWII paratrooper jump boots.
)According to Scott Buck in an interview, he's "no longer killing" and has isolated himself from everything as "banishment".