Filmography
| Role | Title | Year | Character |
|---|---|---|---|
| Actor | Thor | 2011 | Townie |
| Writer | Thor | 2011 | |
| Writer | Světová válka Z | 2013 | |
| Writer | Výměna | 2008 | |
| Writer | Underworld: Probuzení | 2012 | |
| Creator | Babylon 5 | ||
| Writer | Ninja Assassin | 2009 | |
| Writer | Babylon 5: Velký sumit | 1993 | |
| Writer | Babylon 5: Řeka duší | 1998 | |
| Producer | Babylon 5: Řeka duší | 1998 | |
| Writer | Babylon 5: Na počátku | 1998 | |
| Producer | Babylon 5: Na počátku | 1998 | |
| Writer | Babylon 5: Třetí prostor | 1998 | |
| Producer | Babylon 5: Třetí prostor | 1998 | |
| Writer | Babylon 5: Volání do zbraně | 1999 | |
| Producer | Babylon 5: Volání do zbraně | 1999 | |
| Writer | Babylon 5: Legenda o strážcích | 2002 | |
| Producer | Babylon 5: Legenda o strážcích | 2002 | |
| Director | Babylon 5: Hlasy v temnotě | 2007 | |
| Writer | Babylon 5: Hlasy v temnotě | 2007 | |
| Producer | Babylon 5: Hlasy v temnotě | 2007 | |
| Writer | Babylon 5: The Road Home | 2023 | |
| Writer | Murder, She Wrote: A Story to Die For | 2000 | |
| Writer | Silver Surfer: Prodigal Son | 2019 |