Cast & Crew zu 21 Gramm
| Paul Rivers | Sean Penn | |
| Jack Jordan | Benicio Del Toro | |
| Cristina Peck | Naomi Watts | |
| Mary Rivers | Charlotte Gainsbourg | |
| Marianne Jordan | Melissa Leo | |
| Claudia | Clea DuVall | |
| Michael | Danny Huston | |
| Cathy | Carly Nahon | |
| Laura | Claire Pakis | |
| Boy | Nick Nichols | |
| Gynecologist | John Rubinstein | |
| Reverend John | Eddie Marsan | |
| Fat Man | Loyd Keith Salter | |
| Basketball Guy | Antef A. Harris | |
| Freddy | Marc Musso | |
| Al | Tony Vaughn | |
| Brown | Paul Calderon | |
| Dr. Rothberg | Denis O'Hare | |
| Regie |
Alejandro González Iñárritu |
|
| Buch |
Alejandro González Iñárritu Guillermo Arriaga |
|
| Kamera |
Rodrigo Prieto |
|
| Schnitt |
Stephen Mirrione |
|
| Musik |
Gustavo Santaolalla |
|