Don’t Look Up Cast
- Leonardo DiCaprio as Dr. Randall Mindy (an astronomer)
- Jennifer Lawrence as Kate Dibiasky (an astronomer)
- Cate Blanchett as Brie Evantee
- Rob Morgan as Dr. Clayton ("Teddy" Oglethorpe, a scientist who aids Dibiasky and Mindy on their quest)
- Meryl Streep as President Janie Orlean
- Jonah Hill as Jason Orlean (President Orlean's son and Chief of Staff)
- Timothée Chalamet as Quentin
- Ariana Grande as Riley Bina
- Himesh Patel as Phillip
- Scott Mescudi as DJ Chello
- Matthew Perry as Dan Pawketty (a conservative talking head)
- Tomer Sisley as Adul Grelio
- Tyler Perry as Jack Bremmer
- Melanie Lynskey as June
- Ron Perlman as Colonel Ben Drask
- Chris Evans as Peter Isherwell
- Paul Guilfoyle as General Themes (Chairman of the Joint Chiefs of Staff)