Mary

Mary is the younger sister of Jack and co-owner of a mobile eatery that always ended up being destroyed throughout her and Jack's appearances. Unlike her brother, she had no speaking roles. She is based on Mary King from Getter Robo as the co-pilot of the Super Robot Texas Mack. She is also a playable character in Robot Girls Z ONLINE.

History
Mary and her brother Jack sell various snack foods throughout Photon Power Town. While there business is relatively successful, their van usually ends up getting destroyed. In the final episode, Mary dresses up in a hat and cardboard box while standing alongside Robot Girls Team G as the Texas Mack until she goes back to her brother with the van before it got stolen by Baron Ashura and destroyed by Z-chan's Rocket Punch.