The conversation between human and AI assistant.
[|Human|] List the four characters in the 1971 movie Willy Wonka and the Chocolate Factory
[|AI|] 1. Willy Wonka, portrayed by Gene Wilder.
2. Charlie Bucket, portrayed by Peter Ostrum.
3. Grandpa Joe, portrayed by Jack Albertson.
4. Augustus Gloop, portrayed by Michael Bollner.
[|Human|] 
List the four characters in the 1971 movie Willy Wonka and the Chocolate Factory