Katrina "Kat " Willow Joy Harrington  is the younger sister of Terrence and the less favored child. Her brother was always the star student and Katrina always seemed to only lurk in the shadows of her brothers fame. She is quiet and loves babysitting the little ones of her half-sister Alessandra and is in her last year in the studying to become an artist and visual arts major. Her parents aren't very supportive of the path she has taken and believe that she should have become a businesswoman like his older brother Terry. but she has a group a very supportive friends which she is thankful for.