Filmography
| Role | Title | Year | Character |
|---|---|---|---|
| Writer | Constantine | 2005 | |
| Writer | Watchmen | 2009 | |
| Writer | Batman: The Killing Joke | 2016 | |
| Writer | The League | 2003 | |
| Writer | Justice League Dark | 2017 | |
| Writer | From Hell | 2001 | |
| Writer | Constantine: City of Demons - The Movie | 2018 | |
| Writer | Watchmen: Tales of the Black Freighter | 2009 | |
| Writer | Watchmen: Tales of the Black Freighter | 2009 | |
| Actor | Seriehjältarnas kamp mot ondskan | Himself (Archival Interview) | |
| Actor | Secret Origin: The Story of DC Comics | 2010 | himself |
| Actor | The Show | 2020 | |
| Writer | The Show | 2020 |