Silas Carson provided various alien voices for the Doctor Who television story The End of the World and for the Ood, as well as Uvlavad Kudlak on The Sarah Jane Adventures. Outside of Doctor Who, he is best known for portraying various characters in all three Star Wars prequels.
- The End of the World - Various alien voices
- The Impossible Planet - Voice of the Ood
- The Satan Pit - Voice of the Ood
- Planet of the Ood - Voice of the Ood
- The End of Time - Voice of Ood Sigma
- Pond Life - Voice of the Ood