Ian Fowler was a costume assistant credited on the following Doctor Who stories:
- Arachnids in the UK
- The Battle of Ranskoor Av Kolos
- Before the Flood
- Can You Hear Me?
- Demons of the Punjab
- Eve of the Daleks
- Face the Raven
- Fugitive of the Judoon
- The Girl Who Died
- Heaven Sent
- Hell Bent
- The Husbands of River Song
- It Takes You Away
- Kerblam!
- Legend of the Sea Devils
- The Magician's Apprentice
- Nikola Tesla's Night of Terror
- Once, Upon Time
- Orphan 55
- The Power of the Doctor
- Resolution
- Revolution of the Daleks
- Sleep No More
- Spyfall
- Survivors of the Flux
- The Timeless Children
- The Tsuranga Conundrum
- Under the Lake
- The Vanquishers
- Village of the Angels
- The Witch's Familiar
- The Witchfinders
- The Woman Who Fell to Earth
- The Woman Who Lived
- The Zygon Invasion
- The Zygon Inversion