In 1898, Theodore Roosevelt killed a werewolf while hunting in Cuba.

Four years later, he founded an organization dedicated to combating paranormal threats to global security.

This organization was called the League of Supernatural Defense and Research. Most aware of its existence call it by another name...

The Spookhouse.

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Jackson Foster
Age: 28
Date of Birth: January 8th, 1996
Birthplace: Somewhere in Hokkaido

The son of an American general and a Japanese woman, Jackson remembers very little of his early childhood except that he lived in a small town where it snowed all year round. When he was around 7, his mother simply disappeared, and though friends of the family searched high and low, it was as if she simply vanished into thin air. Following her disappearance, Jackson's father moved them back to America. He was a quiet child growing up and spent most of his time alone at school, but he excelled academically. Though Jackson's father assumed he would enter military service after high school, he went on to college for a few years, eventually joining the CIA and later being scouted by the Spookhouse.

Jackson had enjoyed stories about yokai and oni when he was a child, so he accepted the existence of the supernatural fairly easy. He still kept to himself most of the time between missions, but this began to change after a mission that took him back to Japan. A snowstorm had been ravaging the area near where he lived for nearly a week, but no natural phenomena could explain why. Jackson's unit was tasked with identifying the cause, and thus they ventured out into the frozen wilds. Needless to say, they got lost fast. Then one of them thought they saw a woman. Jackson doesn't remember what happened next... Only that he woke up outside his childhood home all by himself as the only survivor of that mission, the snowstorm having cleared up at some point while he was unconscious.

At first, Jackson didn't quite understand what had happened to him, but unusual things started to happen around him. The temperature in a room would drop when he entered, his breath was foggy every now and then... And then, a glass of water he was drinking from one morning froze solid. Whatever had happened during that mission, it was causing him to develop ice powers, but he couldn't properly control them until another mission, when he saved three teammates from a rampaging cave troll by impaling it on several large shards of ice. These teammates would become Jackson's closest friends, and people around the Spookhouse started calling him by a callsign, even if it wasn't that original. "Jack Frost".

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So here's a character from an old horror RP that never really took off.
Drawn by  Bonky