Nicolas Cage did not appear in "The Godfather Part III." The film, released in 1990, starred Al Pacino as Michael Corleone, Diane Keaton as Kay Adams, and Andy Garcia as Vincent Mancini, among others. Cage is not part of the cast for this installment of the iconic series. If you meant to inquire about any other role or film involving Nicolas Cage, please clarify!

Yes, Vito Corleone appears in "The Godfather Part II." Although the film primarily focuses on his son, Michael Corleone, Vito's character is portrayed through flashback scenes. These flashbacks depict Vito's early life and rise to power in the 1900s, played by Robert De Niro, who won an Academy Award for his performance. This dual narrative structure contrasts Vito's ascent with Michael's struggles to maintain the family empire in the 1950s, deepening the film's exploration of power and legacy.

Marlon Brando did not reprise his role as Vito Corleone in "The Godfather Part II" primarily due to his dissatisfaction with the film industry and his reluctance to work within the constraints of a sequel. Additionally, Brando had a history of conflicts with studio executives and was not interested in returning to a role he had already won an Oscar for in the first film. Instead, the sequel focused on Al Pacino's character, Michael Corleone, and explored his rise to power, with the story of Vito Corleone being told through flashbacks.

In "The Godfather Part II," Robert De Niro played the role of a young Vito Corleone. The film explores Vito's early life in Italy and his rise to power in New York City, juxtaposed with the story of his son, Michael Corleone, portrayed by Al Pacino. De Niro's performance earned him an Academy Award for Best Supporting Actor, showcasing Vito's transformation from a vulnerable immigrant to a powerful mafia boss.