Meghan Rose Gallagher Older twin sister of Ian Gallagher. Younger sister of lip and Fiona Gallagher older sister of Debbie, Liam, and Carl Gallagher. Best friend of Mandy Milkovich. Girlfriend to Kevin Ball's little brother Colby Ball Partner in crime with Mickey Milkovich Fiona's rock Inserperation to debbie and carl OCXOC [SEASON 1-5]