Ah, Karen. She was all over the place – I think that's the best way to describe her. Impulsive, rash, ridiculously brave, sometimes oddly brilliant, sometimes criminally insane. It goes without saying that she illustrates her player's style quite nicely.
Karen Lennox was a police officer, who first became an investigator of the supernatural and thereafter a Willworker - a spellcaster extraordinaire. She specialized in mind-magic and warping space, and many of her greatest moments revolved around Thinking With Portals. Her adventures were strange, to the point of becoming outright comic-book bizarre. She fought her own evil clone created by the Mothman, she was almost possessed by a former college professor, and she killed some random woman by dropping scuba gear from a paraglider. I don't think anything will top the sheer weirdness of that last decision.
Karen existed in a world where supernatural creatures frequently rubbed elbows, and she seemed to live by the maxim that whatever doesn't kill you, simply makes you stranger. She was arguably crazy – but on the other hand, she lived in a crazy world. Her lateral thinking often backfired, but it can't be denied that some of her plans were surprisingly successful.
Her most triumphant moment may have been using the Supernal Tarot to ascend to the Mindscape, narrowly avoiding her death even when her body was ripped to pieces, and thereafter being reborn from her friend's right rib. It's a great example of the sort of mad-scientist thinking she usually deployed.