Psinister: telepathic/psionic genius villain. Little known.
Provided lots of inventions for others.
He helped create and formed the devices for Blackguard (Floop Bros), VILE (under several guises), he created the telepathic device for Crimequeen (Auntie Phil) of BAD, he had infiltrated MEDUSA and had been responsible for freeing Stigmata, amongst so many other dealings.
His biggest rival was Motivator.
The two villains despised one another and the primary reason Motivator wasn't as big of a threat to the world was because Psinister was constantly thwarting her schemes.
Motivator's powerful telepathy had difficulty working on Psinister which angered her greatly, she could never find him to extract revenge.
Unknowingly, it was a comment made by Lodestone of Blackguard during a bank robbery that qued her in to his possible location.
Knowing he'd spot her if she got within a mile of her, she used her advanced technology to monitor the Shady Hills Golf course that Black Guard his at.
When the Crusaders discovered this location via a tip (unknowingly from Motivator herself), they moved in to attack, beat them as Psinister escaped. Fled to a hidden airfield and made flight plans to a hidden base in south Asia.
Tracking him with flying probes, she set in motion a plan to destroy the aircraft.
She was partially successful, when her long range missiles downed the craft but failed to destroy it.
It crashed in the dense jungles of Borneo.
She laughingly projected a holographic image and taunted the injured villain. Warning him to never cross her again, as she had injected nano trackers in him and would see him coming. She would kill him the next time he crossed her.
She left and Psinister tried to crawl from the wreckage, the pain was intense, so intense he didn't sense the approach of evil from behind him... An evil that would become... Headhunter.