Cat Grant has pale skin, blue eyes, and layered yellow-blonde hair with center-parted bangs. She wears business casual dress including a maroon fitted jacket with small shoulder pads, a scoop neck just below the collarbone, elbow-length sleeves, and a white placket without visible fastenings. She also wears a maroon knee-length skirt (matching the jacket) and high heels. She wears small, square ear studs, a torc-style silver necklace and a silver bracelet on her right wrist.
After Captain Marvel defeated Ibac and Sabbac, Cat Grant did a news report on the fight. During the broadcast, it appeared that all children disappeared. Cat stayed on air to give live coverage of the events.
Cat Grant tried to get a statement from Zatanna and Rocket as they entered the Hall of Justice, but they declined comment. Catherine Cobert assured her the League would issue a statement on an alien attack on the UN shortly.
After Mongul launched all of the Warworld's weapons to carpet-bomb the Earth, Cat Grant somewhat listlessly passed on the recommendations of Homeland Security for all Americans to remain indoors. There was nowhere to go.
Nightwing turned on the TV, and Cat Grant said that Blue Beetle is dominating the current news cycle, with the UN Secretary-General announcing his plan to award Blue Beetle with the international medal of valor for saving the Earth.
Cat reported on the Independence Day celebrations. As a number of Leaguers escort the Reach flagship into space, she noted that it was a special independence day for the whole world; one free of Reach control, thanks to the Justice League.
Cat Grant is a pre-existing character in DC Comics and supporting character of Superman in particular. She was originally presented a love-interest for Clark Kent and foil for Lois, who worked as an entertainment and gossip columnist for the Daily Planet. Her character left the series for a period after the death of her son, and struggled with alcoholism. During Lex Luthor's tenure as President of the United States of America, Cat served as White House Press Secretary. Following President Luthor's impeachment she eventually returned to the Planet. She is now portrayed as a brazen arrogant and overtly sexual woman obsessed with plastic surgery and snide behavior.
This is the second animated incarnation of Cat; she previously appeared in the direct-to-video film, All-Star Superman.