UniKitty

Uni-Kitty is a half unicorn and half anime kitten who wants to help Emmet, Wyldstyle, Batman, Benny, Metalbeard and Vitruvius to save the Lego world from the Evil Lord Business. She usually tries to be sweet all of the time but when she get's angry then she becomes deadly.

Personality
UniKitty is very ecstatic and energetic, and is easily excited while meeting with new people such as Emmet. Despite being happy most of the time she has a sad side, or as she describes it "the opposite of happiness" and despite her best efforts to keep positive she was reduced to tears over witnessing Cloud Cuckoo-Land destroyed. UniKitty has a deadly temper, something which she has a difficult time controlling but this actually ended up helping them during the final battle between President Business.