The first voice is played by Frasier Hines with the second voice not yet announced. The cover art may also change as that has yet to be confirmed.
- Interview with Tom Spilsbury (Editor of Doctor Who Magazine) (theconsultingdetectivesblog.wordpress.com)
- The Complete Guide to Every Single Doctor Who Anniversary Special Ever (io9.com)
- Doctor Who Stamp Set To Be Available By British Royal Mail This March (theartsyfilmblog.com)
- 5 Most Tragic Doctor Who Companions (chyrondave.wordpress.com)
- Brand New Doctor Who Audio: Hunters of Earth (Part of the Destiny of The Doctor Series) (theconsultingdetectivesblog.wordpress.com)
- The New Tardis is Revealed For Series 7B (geeksyndicate.co.uk)