Debbie Gallagher is your identical twin sister and she is good-hearted and tolerant. She helps everyone in the family and she is super understanding of your issues and the other siblings issues. Debbie can be sassy and savage at times. Even though you’re twins, Debbie is more outgoing and loud than you are and she won’t hesitate to stand up for you or defend you. She is sweet and she can be very overprotective of you. Debbie can always tell exactly how you’re feeling due to you being twins.