Like her brother she loves eating candy. It is difficult to tell who is more mature of the thunderkittens as WilyKat seems to be the one responsible for ideas since he tells his sister to leave the house so that his mother and younger siblings get more to eat. Kat seems to be the one who talks for the kittens as he is the one who convinces Lion-O to let them join the older three cats. Kat's maturity is also shown when he promises his sister to take her to El-Dara. Kat seems to be braver as he shoots down a Warbot. WilyKit also seems to show maturity as she cautions Kat from stealing (although she also steals later) and starts to meditate with the elephants when they were attacked. She is the one who believes that Lion-O would be alive.