Sarah Bellini was born in Hamburg in 1992 and grew up there in her native language in German and Italian. From 2012 to 2014 she studied acting skills of performing arts. After several small performances as a children's actress, Bellini became known in her role as Nadine in the psychological thriller Der Kronzeuge, which was broadcast in 2007 on ARD and ORF 2. Bellini has been living in Los Angeles since 2014.