1. Chris Miller. Co-director of this, and co-writer and director of The Lego Movie.
2. Woody Harrelson. Oscar-nominated actor you might have seen as Haymitch in the Hunger Games films. He's playing a mentor to Han Solo.
3. Phoebe Waller-Bridge. A British actress and comedian. Nobody knows what role she's playing yet.
4. Alden Ehrenreich. An American actor who is playing the young Han Solo.
5. Emilia Clarke. A British actress best known for the TV show Game Of Thrones, where she looks completely different thanks to a white wig and dragon sidekicks!
7. Phil Lord. The other co-director, who also did The Lego Movie.
8. Donald Glover. An American rapper, actor and comedian also known as Childish Gambino. He's also in the upcoming Spider-Man: Homecoming film. In the Han Solo film he's playing a young version of Lando Calrissian.