Born to Egyptian parents, Rosaline grew up in Egypt and has also lived in the United Kingdom and the United States. Before her Acting MFA from LAMDA, she had a BA in Classics & Archaeology from Oxford University and an MSc in Colonialism & Globalisation from the LSE. She is best known for Netflix series Kaleidoscope and A24's Ramy for Hulu, as well as MBC's Qabeel and the feature film Diamond Dust.