Given an article, identify the main actors and summarize their roles.
The main actors in the film The Godfather are Marlon Brando, who plays Don Vito Corleone, the head of a criminal organization, and his son Michael Corleone, played by Al Pacino, who is a World War II hero and initially wants no part in the family business.
In the highly acclaimed film The Godfather, Marlon Brando plays the head of a criminal organization, Don Vito Corleone. His son, Michael Corleone, is a returning World War II hero who initially wants nothing to do with the family business.
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.

### Instruction:
Given an article, identify the main actors and summarize their roles.

### Input:
In the highly acclaimed film The Godfather, Marlon Brando plays the head of a criminal organization, Don Vito Corleone. His son, Michael Corleone, is a returning World War II hero who initially wants nothing to do with the family business.

### Response:
The main actors in the film The Godfather are Marlon Brando, who plays Don Vito Corleone, the head of a criminal organization, and his son Michael Corleone, played by Al Pacino, who is a World War II hero and initially wants no part in the family business.