Isis is gentle like her mother when she wants to but just as feisty as her father Edward. However, she is very protective of her rider during missions and tends to be a bit snappy and agressive when she feels both are threatened. Specifically bred by the Survey Corps. for speed, endurance to run long distances without complaint but also for gentleness and soundness. She is an excellent runner like her mother and has a long but very smooth gait allowing her to be ridden for long periods of time without her handler getting sore to outrun titans. The nearly constant sound of Three Dimensional Maneuver Gear being used so close to her seems to have no effect on her. She is not normally frightened in the presence of Titans but she fears she herself will be eaten by one of them.