Factual
Cast List: A
- James Acheson (cast as Self in Carnival of Monsters)
- Chris Addison (cast as Self in Doctor Who Extra: Dark Water)
- Dr. Maggie Aderin-Pocock MBE (cast in 2 episodes, e.g. Self in Extra Time)
- Scott Adsit (cast in 2 episodes, e.g. Self in The Science of Doctor Who)
- Abisola Agbaje (cast in 2 episodes, e.g. Self in Totally Doctor Who (#1.12))
- Freema Agyeman (cast in 14 episodes, e.g. Self in Totally Doctor Who (#2.1))
- John Ainsworth (cast as Cast in Comedy Sketches: The Corridor Sketch)
- Professor Jim Al-Khalili OBE (cast in 2 episodes, e.g. Self in The Science of Doctor Who)
- Sophie Aldred (cast in 3 episodes, e.g. Self in I Get a Sidekick out of You)
- Samuel Anderson (cast in 6 episodes, e.g. Self in Doctor Who Extra: Into The Dalek)
- Adjoa Andoh (cast in 2 episodes, e.g. Self in Totally Doctor Who (#2.6))
- Peter Anghelides (cast as Self in Over the Edge)
- Julie Ankerson (cast as Self in After Effects)
- Daniel Anthony (cast as Self in My Sarah Jane)
- Ayesha Antoine (cast in 2 episodes, e.g. Self in Look Who's Talking)
- Steve Arnott (cast as Cast in Comedy Sketches: The Corridor Sketch)
- William Ash (cast as Self in Totally Doctor Who (#2.7))
- Daphne Ashbrook (cast in 2 episodes, e.g. Self in The Eighth Doctor)
- Zawe Ashton (cast as Self in Doctor Who Extra: Into The Dalek)
- Toby Aspin (cast as Self in 30 Years In The TARDIS)
- Jessica Atkins (cast as Self in Totally Doctor Who (#1.5))
- Howard Attfield (cast as Self in A Noble Return)
- Steve Austen (cast as Cyberman in 30 Years In The TARDIS)
- Mark Ayres (cast in 3 episodes, e.g. Self in Who Made Who)