David Hemingson was a producer, writer and voice actor for American Dad! with the following episode credits:
- Pilot (American Dad!) (6 February 2005) - co-executive producer
- Threat Levels (1 May 2005) - co-executive producer
- Stan Knows Best (8 May 2005) - co-executive producer
- Francine's Flashback (15 May 2005) - co-executive producer
- A Smith In The Hand (2005) (writer)
- Surro-Gate (2007) TV (co-executive producer)
- Tearjerker (2008) TV (co-executive producer) (voice...Doyle)
- Oedipal Panties (2008) (writer) (voice...Hercules/Distant Voices/Fedora Guy)