Answer: Vito Corleone (Marlon Brando)
This quote takes place in Vito Corleone's office, during the wedding reception of his daughter Connie (Talia Shire) to gangster Carlo Rizzi (Gianni Russo). Singer Johnny Fontane (Al Martino) has complained to the Godfather that he won't be getting a role in an upcoming war movie that he really wanted. When the Godfather says he will help, Fontane says, "It's too late, they start shooting in a week." Vito Corleone then says this quote. There is some speculation that this sequence was partially inspired by Frank Sinatra's role of Private Maggio in the war movie "From Here to Eternity" (for which Sinatra won the 1954 Oscar for Best Actor in a Supporting Role). Note: Later in the movie, when Michael Corleone says he plans to buy out Moe Green's Las Vegas casino interest, his brother Fredo says, "Hey, Mike, are you sure about that? Moe loves the business -- he never said nothin' to me about selling." Michael Corleone then says a similar quote. He is not a choice in this question to avoid any confusion.