Real Name: Preston Payne
Occupation: Criminal
Marital Status: Single
Base of Operations: Gotham City
Height: 5ft. 6in.
Weight: 130 lbs
Eyes: Red
Hair: None
First Appearance: Outsiders # 21
Created By: Len Wein, Marshall Rogers

The fourth Clayface, Sondra Fuller, is also known as Lady Clay. She was a member of Strike Force Kobra who was transformed into a shape-changer by her employer Kobra's technologies, a process she agreed to become a subject of because she hated her own face, which she found extremely disgusting.

She possesses identical abilities to those of Matt Hagen, only with the advantage/disadvantage of having them permanently, without the requirement for a source of protoplasm. She could additionally copy any special powers of the being she was mimicking. She was defeated by the Outsiders.

Later, after the Mud Pack formed and battled Batman, Fuller fell in love with Preston Payne and they had a child named Cassius. After Abbatoir kidnapped the child, the couple got into a fight involving Azrael/Batman.