Nacido/a el February 8, 1914 · Denver, Colorado, USA
Filmography
| Role | Title | Year | Character |
|---|---|---|---|
| Writer | El caballero oscuro | 2008 | |
| Creator | El caballero oscuro: La leyenda renace | 2012 | |
| Writer | El caballero oscuro: La leyenda renace | 2012 | |
| Writer | Joker: Folie à Deux | 2024 | |
| Writer | Batman vuelve | 1992 | |
| Writer | Batman y Robin | 1997 | |
| Writer | Batman: La broma asesina | 2016 | |
| Writer | Batman Ninja | 2018 | |
| Writer | La muerte de Superman | 2018 | |
| Writer | ¡Scooby-doo! y el intrépido Batman | 2018 | |
| Writer | Batman Vs. Dos Caras | 2017 | |
| Writer | Nightwing | 1979 | |
| Actor | Batman & Bill | 2017 | Himself (archive footage) |
| Writer | The Death of Batman | 2003 | |
| Writer | Holy Batmania | 1989 |