kɔstˈænzoʊ wʌz bˈɔːɹn ɪn ɹˈoʊm, ðə sˈʌn ʌv dʒˈɜːnəlˌɪst ænd tˌiːvˈiː pɹɪzˈɛntɚ mɔːɹˈɪzɪˌoʊ kɔstˈænzoʊ ænd ɹˈaɪɾɚ flæmˈɪniə mɔːɹˈændi, ænd ðə bɹˈʌðɚɹ ʌv ɹˈaɪɾɚ slˈæʃ dᵻɹˈɛktɚ kæmˈɪlə kɔstˈænzoʊ.
Costanzo was born in Rome, the son of journalist and TV presenter Maurizio Costanzo and writer Flaminia Morandi, and the brother of writer/director Camilla Costanzo.