Threshold (audio story)

Threshold was the first Big Finish Productions audio drama in the Counter-Measures series.

Publisher's summary
A missing scientist and ghostly phenomena bring Gilmore and Allison to a factory in Bermondsey, and the discovery of a science that should not exist. As Rachel Jensen returns to help them, a new future for Counter-Measures is set in motion...

Cast

 * Group Captain Ian Gilmore - Simon Williams
 * Professor Rachel Jensen - Pamela Salem
 * Dr. Allison Williams - Karen Gledhill
 * Sir Toby Kinsella - Hugh Ross
 * Professor Heinrich Schumann - Vernon Dobtcheff
 * Lieutenant Tom Carver - Andrew Fettes
 * Jenny Haveloc - Alison Thea-Skot
 * Simkins - John Banks

Story notes

 * Simon Williams (Ian Gilmore), Pamela Salem (Rachel Jensen) and Karen Gledhill (Allison Williams) all reprise their roles from DW: Remembrance of the Daleks. Salem had previously played Lish Toos in DW: The Robots of Death and provided one of the voices of Xoanon in DW: The Face of Evil whereas Williams subsequently played Paul Addison and Shara in BFA: Nekromanteia, Lord Ruthven in JAL: The Ruthven Inheritance and the Guardian in BFA: The Guardian of Prophecy.
 * Hugh Ross (Sir Toby Kinsella) previously played Reverend Merodach in CC: Night's Black Agents and Robert Stretton in BFA: Industrial Evolution.
 * Vernon Dobtcheff (Professor Heinrich Schumann) previously played a War Lord scientist in DW: The War Games, Dadda Desaka in BFA: The Cradle of the Snake, Professor Sibelius Crow JAL: The Necropolis Express and Shamur in BFA: The Children of Seth.
 * Alison Thea-Skot (Jenny Haveloc) previously played Jesic in BFA: Brotherhood of the Daleks, Greta Tod in BFA: The Beast of Orlok, Ayl-San in BFA: A Death in the Family and Sally Lucas in BFA: Rat Trap.

Continuity

 * Gilmore mentions that he has seen matter transfer technology before but believed that the development of such technology on Earth was not yet a possibility. (DW: Remembrance of the Daleks)
 * Rachel refers to the Shoreditch Incident at the Coal Hill School in November 1963. (DW: Remembrance of the Daleks)