Joan Williams (Earth-2: Post-Crisis)

"When you're out there please remember... Be careful? Watch your head. Doctor's orders."

- Joan Williams and Jay Garrick

Dr. Joan Williams is an expert in neurology and the wife of Jay Garrick, better known as The Flash on Earth-2.

Abilities

 * Science: Working alongside Jay Garrick, her husband, Williams shared a field of expertise over neurology and later became an expert on science relating to cosmic forces, such as the Speed Force.

Former Equipment

 * Neural Hyper-Collider: Williams created a neural hyper-collider to project human consciousness into other people's minds.