Narcissus was the fourth and final audio story in the anthology The Eighth of March.
to be added
- Kate Stewart - Jemma Redgrave
- Osgood / Double Osgood - Ingrid Oliver
- Josh Carter - James Joyce
- Jacqui McGee / Double Jacqui McGee - Tracy Wiles
- Female-Jordan Love - Alix Dunmore
- Male-Jordan Love - Dan Blaskey
- This story reveals that it was the Zygon Osgood who was killed by Missy in Death in Heaven, and that the real Petronella Osgood survived.
- This is the first appearance of Bonnie in a Big Finish Production.
- UNIT have already lost one Osgood. (TV: Death in Heaven)
- Kate and Osgood use Project Indigo. (TV: The Stolen Earth)
- Jacqui mentions the Silence. (AUDIO: House of Silents, Square One, In Memory Alone)
- Osgood finds Shansheeth in the UNIT records. (TV: Death of the Doctor)