Catwoman

Biography:
Miranda aka Catwoman started as a villain in the Batman Shadow Knight series episode Cat and Croc, and she soon became a part of the Bat People due to her conversion to good and her attractiveness. She briefly took Quick Claw under her wing, after he fell into the sewer he turned into Killer Croc. When she is defeated and her apprentice is heroically murdered she immediately turns to good and gets engaged to Batman, finding her place in the home instead of crime fighting which she had previously done.

Personality:
Despite the fact that she is the most fleshed out female character in the Iowaverse, not much can be known about her personality, she is mostly involved with cooking and cleaning in Wayne Maynor with Alfred while Batman and Young Bat save Gotham City, Iowa.

Powers/Abilities:

 * Turning people into crocodile men (implied)
 * Has a whip
 * Attractiveness

Trivia:

 * After she met Batman it is speculated by fans that she instantly saw Batman as the man she wanted to marry, so the two essentially skipped the dating stage and got engaged immediately.
 * Divorce rates for people who get engaged after dating for less than a month are significantly higher than those relationships that are based on silly things like love and compatibility.