Nah, just kidding. They are called the Irradiated Trio, my custom super villains for a story.
Some info on their background.

Tom, d*** and Harry were engineers working in a nuclear energy plant in Gotham. One day, a malfunctioning radiation meter caused an explosion and overload of radiation in the plant. While others safely evacuate the plant, Tom, d*** and Harry were trapped in the control room due to electronic failure.
Soon radiation leaked into the Control room and due to over exposed to radiation, Tom, d*** and Harry were mutated.

Their heads started to glow in green which also glows in the dark, they discovered that they have super natural self healing ability.
That includes growing of new limbs when decapitated, which makes them almost invulnerable.
They always work in a team of three and never stay alone.