Bethesda received widespread praise when this list of professional actors voicing characters in Oblivion was released, specifically due to three of the four being British.
 Sir Patrick Stewart
 Sean Bean
 Lynda Carter
Carter, who is married to the CEO of Bethesda Robert Altman, voices the female Nord and Orc NPCs. She also voices Nord females in Morrowind, Bloodmoon, and Skyrim. She has had a successful career in film and television.
 Terence Stamp
 Additional Voice Actors
Several of these actors also provide voice acting for other Bethesda games, as noted below.
- Jonathan Bryce: Argonian, Khajiit, Nord, and Orc males, Molag Bal, Hircine, Malacath
- Catherine Flye: Breton and Imperial females, Nocturnal
- Wes Johnson: Dremora and Imperial males, the Arena announcer, Sheogorath, Hermaeus Mora
- Linda Kenyon: Altmer, Bosmer and Dunmer females, Azura
- Craig Sechler: Altmer, Bosmer, Dunmer and Golden Saint males, Clavicus Vile, Barbas, Sheogorath (pre-Shivering Isles)
 Additional Voice Actors (Shivering Isles)
Here are the voice actors who worked exclusively on the Shivering Isles expansion (not including those previously mentioned).
- Jeff Baker: Haskill