Meanings of brooding loner in English

He came across as neither a brooding loner nor a religious extremist.

He was far too young to be known as a brooding loner we needed to get his disguise in gear.

They kicked Robin out, send him off to college, and turned Batman into an obsessed, brooding loner, back to his original roots.

Perry was in his mid-20s when he started playing high schooler Dylan McKay, a brooding loner on a motorcycle with prominent sideburns and bad-boy tendencies.

This brooding loner posturing is about 100% less believable when it's played by guys who clearly had queues behind them for their yearbook signings.