Doctor Light's corpse was revived as a Black Lantern during the event.

He has courted the female Doctor Light, sometimes to the point of angering her.

Over the course of the series, it is revealed that in the past Sue was raped by Doctor Light.

Doctor Light is only occasionally active in the superhero community because she is a single mother with two children.

Doctor Light has the ability to manipulate ambient light for a variety of purposes.

Doctor Light was a minor villain throughout the series.

A new Doctor Light, this time heroic and female, was introduced.

Doctor Light is the name (or codename) of various fictional scientists.

The epilogue has her joining the rest of the Titans as they head off to stop Doctor Light.

Later slain by Doctor Light, who had severe mental problems concerning young superheroes.