Shelley Byron (Earth-21: Post-Crisis)

"I'm Shelley Byron. Also known as The Fog... if you like, as you like."

- Shelley Byron to Crazy Jane

Shelley Byron is a former employee of the Bureau of Normalcy and the leader of the Sisterhood of Dada, better known as The Fog.

Powers

 * Transformation: Byron is capable of transforming into a white fog, appearing multiple times greater than her human form.
 * Intangibility: Byron's fog form allows her to pass through walls through going through the small gaps.
 * Teleportation: Byron seems to be able to teleport within great distances in a short period of time.
 * Longevity: Byron's appearance remained the same for over a century, with only slight changes to her hairstyle.

Weaknesses

 * Allergy: Byron has an allergy to cat fur, including those on shapeshifters.