Last updated 24 March 2024


Episode 6

Series Episode Number: 191

World Premiere: Sat 27 Jan 1968 - 5:26pm GMT [BBC One] (United Kingdom)
Running Time: 21 minutes 41 seconds

8.30 Million (UK)

Appreciation Index: 52 (UK)

Chart Position: 55 () (UK)

Recorded on Sat 06 Jan 1968 in Lime Grove D
Archive State: Found (11-Oct-13)



Astrid discovers the underground bunker and Salamander's secret. On the surface, Giles Kent reveals his true colours.


Characters hide uncredited
Dr. WhoPatrick Troughton
SalamanderPatrick Troughton
AstridMary Peach
SwannChristopher Burgess
JamieFrazer Hines
VictoriaDeborah Watling
Donald BruceColin Douglas
BenikMilton Johns
Guard in CorridorWilliam McGuirk
Guard CaptainElliott Cairnes
MaryMargaret Hickey
ColinAdam Verney
Giles KentBill Kerr
Guard at KanowaDavid Troughton (uncredited)
Guard at KanowaDrew Borland (uncredited)
Guard at KanowaCharles Mylne (uncredited)
Guard at KanowaEric Bird (uncredited)
Guard at KanowaGary Dean (uncredited)
Guard at KanowaJay Neill (uncredited)
Guard at KanowaTony Franks (uncredited)
SheltererPearl Hawkes (uncredited)
SheltererRosina Stewart (uncredited)
SheltererValerie Taylor (uncredited)
SheltererRuth Harrison (uncredited)
SheltererSarah Lisemore (uncredited)
SheltererDeborah Millar (uncredited)
SheltererJohn Timberlake (uncredited)
SheltererGeoffery Obert (uncredited)
SheltererJohn Clevedon (uncredited)
SheltererBill Howes (uncredited)
SheltererFreddie Whiles (uncredited)
SheltererFrancis Batsoni (uncredited)
Double for SalamanderPeter Diamond (uncredited)