Acting
- 2008Dr. Horrible's Sing-Along BlogProfessor Normal1 ep.
Behind the camera
- 2022Outer RangeWriter2 ep.
- 2021The NeversExecutive Producer6 ep.
- 2020SpectrosCreator7 ep.
- 2017Marvel's The DefendersExecutive Producer, Writer8 ep.
- 2015Marvel's DaredevilCo-Executive Producer, Writer26 ep.
- 2012Common LawWriter1 ep.
- 2011American Horror StoryCo-Executive Producer, Writer13 ep.
- 2008Star Wars: The Clone WarsWriter1 ep.
- 2007Pushing DaisiesConsulting Producer, Writer13 ep.
- 2004The BatmanWriter2 ep.
- 2004The 4400Director, Writer2 ep.
- 2003Tru CallingCo-Executive Producer, Executive Producer, Writer19 ep.
- 1999AngelWriter2 ep.
- 1997Buffy the Vampire SlayerCo-Executive Producer, Co-Producer, Director, Executive Story Editor, Producer, Story Editor, Supervising Producer, Writer22 ep.
- 1991RugratsWriter1 ep.
Guest appearances
- 2008Dr. Horrible's Sing-Along BlogProfessor Normal1 ep.
- —Buffy the Vampire SlayerSelf2 ep.
Also known as: Douglas Petrie