Parasite (audio story)

 was a special full-cast release in the Big Finish Torchwood series. It starred Norton Folgate and Andy Davidson.

Publisher's summary
Enter the world of 1950s Torchwood!

Gangsters are vanishing from the streets of Soho, there's a deadly Nazi secret on the loose, and something's moving in the smog. Norton Folgate should be sorting this out, but the Torchwood agent is in disgrace. Who's going to save London this time?

1. The Man From Room 13

2. Meet Mr Lyme

3. The Mould

4. The Spread

5. The Dead Hand

6. The Liberty of Norton Folgate

The Man From Room 13
to be added

Meet Mr Lyme
to be added

The Mould
to be added

The Spread
to be added

The Dead Hand
to be added

The Liberty of Norton Folgate
to be added

Cast

 * Norton Folgate - Samuel Barnett
 * Andy Davidson - Tom Price
 * Gideon Lyme - Joe Shire
 * Lizbeth Hayhoe - Dervla Kirwan
 * Rigsby - David Troughton
 * Foreman - Stephen Critchlow
 * Gerta - Ellie Darvill
 * Gondry - Christopher Harper
 * Creature - Alfie Shaw
 * Landlady - Liz Sutherland-Lim
 * Belle Epoch - Franchi Webb

Continuity

 * Norton Folgate tries to persuade Lizbeth Hayhoe to investigate the "living fog", to which she responds that Torchwood is leaving well alone, especially since the event in 1952. The Tenth Doctor and Donna Noble had previously defeated the Fumifugium in London, 1952. (AUDIO: The Creeping Death)
 * Lizbeth states that Norton's previous attempt at seizing leadership of Torchwood One failed miserably. (AUDIO: Goodbye Piccadilly)
 * Andy Davidson claims to be "sort-of working for Torchwood". (AUDIO: Red Base et al)
 * Andy claims he was sent to Norton's time by Jack Harkness to stop him from dying early and creating temporal instabilities. Andy is working for Jack following Torchwood Three's second downfall. (AUDIO: Thoughts and Prayers)
 * Norton recalls saving Andy from the "martians" and the "vats". (AUDIO: Goodbye Piccadilly)
 * Andy is using a vortex manipulator to travel through time. Jack Harkness of Torchwood Three regularly used a vortex manipulator. (TV: The Empty Child, Everything Changes et al)
 * It is noticed by numerous members of Torchwood that the taxis and their drivers are acting suspiciously. Similar events happened during the Christmas of 2007, (TV: The Runaway Bride) and the electric carriages investigated by the Paternoster Gang. (AUDIO: The Cars That Ate London)