Alex Danvers (Earth-1)

Alex Danvers is an individual who served under "Superman" in an alternate reality created by John Deegan.

Biography
When John Deegan rewrites reality, he rewrited Alex Danvers life into a doctor that serve him and who take care of their prisoner Kara Danvers.

Kara tried to convince her that she knows her very well as she is her adoptive sister in her universe. She didn't belives her until she revealed some part of her childhood. She than realize that what she belives was Superman was just a man that rewrited history in the forteress of solitude.

When Deegan appears before them in the corridor after she released Kara, he almost kill them if Superman,Cisco,Oliver and Barry appears.

Superman attack john and sends him through the roof. Oliver attacked Diggle and Frost but Alex mistook Barry to an enemy.

She than leads them to "the forteres of Solitude" but Barry realize that it's the time vault. They find the book but Kara cannot use it as it is to strong and took it so that Superman can use it and put reality back to normal.

She later witness Barry becoming the Flash again and Oliver becoming the Green Arrow as they get out to stop Deegan.