Cora Tomkins

Cora Tomkins is a character on The 4400.

Biography
Cora Tomkins is one of the 4400 who disappeared in 1950. At the request of Richard Tyler, she used her ability to make Isabelle a baby again. Later, she regret what she had done, so she reversed the effect and returned Isabelle to her original state.

Origin
Cora is one of the 4400, and as such, she was abducted during her life and was discovered, along with 4399 other individuals, on the shore of a lake in Seattle, Washington, several decades later looking the exact same as she had when she was abducted. Following her return, Cora and many of the others who had been abducted and returned began to develop superhuman powers, the exact origin of which are unknown.

Powers
Rejuvenation Liquid Secretion: Cora creates a liquid that, when mixed with water, makes whoever drinks it progressively younger. She made Isabelle Tyler twenty years younger.