Catherine Sabathra is the "Weiss Queen" of Neo Britannian Empire's Einberg.

Catherine is a young dark-skinned woman with a slim, buxom build, sporting bright pink hair tied up in twin tails and blue eyes. She is a very stereotypically feminine individual, talking in a playful, teasing manner, favors pink as the color of many of her possessions - most notably her Knightmare Frame, inside whose cockpit she can even be seen taking selfies.

However, she is also very cruel and unforgiving, upholding the concept of strength; she is quick to judge others as "weak," shows no qualms towards expressing her distaste for those she dislikes, and looks down upon the Japanese people with disdain. Additionally, she seems to be very skilled in Knightmare Frame combat, moving exceptionally quickly while maneuvering it in ways comparable to a dancer.