Mabel has a sarcastic tone to her. She always has something witty to say; she also tends to have an attitude. Her time at Foster's has made her soft, but she still tends to give off smart remarks. She also seems to quite jump rope really well, as seen in "Big Fat Awesome House Party". She has a brief speaking role in Hiccy Burp, where she is one of the residents walking out of the auditorium, pleased with Bloo's hiccup practicing.