Catacombs Character Guide
Main Mission Operative

Main Mission Operative

Initially yellow-sleeved, he transferred to Main Mission (his red sleeve is first seen in The Troubled Spirit; he was one of the few who did not go to the concert).

Mike Stevens was also a stand-in, for Martin Landau (Alpha Child, The Infernal Machine, Mission of the Darians), for Roy Dotrice Earthbound, for Ian McShane in Force Of Life, for Alex Scott in Voyager's Return, for Giancarlo Prete in The Troubled Spirit, for Gianni Garko in Dragon's Domain

Breakaway	Alphan in corridor, in background behind Gorski (with an orange sleeve) During the Breakaway he is in Main Mission (on the right here, behind Sandra).
Breakaway	Alphan in Main Mission
Black Sun	Main Mission Operative
Ring Around The Moon	Alphan in corridor
Earthbound	Mostly not visible as he was working as stand-in for Roy Dotrice, although we see him from behind in Main Mission, and he is probably in the corridor crowd when the Kaldorians arrive. A publicity photo shows him sitting at a Main Mission desk.
Another Time, Another Place	Main Mission Operative
Guardian Of Piri	Alphan on Piri
Force Of Life	Alphan in corridor
Alpha Child	Main Mission Operative
The Last Sunset	Alphan on Lunar Surface
Voyager's Return	Main Mission Operative
Collision Course	Main Mission Operative
The Full Circle	Main Mission Operative
End Of Eternity	Main Mission Operative
The Last Enemy	In Main Mission with clipboard
The Troubled Spirit	Main Mission Operative
Space Brain	Main Mission Operative
The Infernal Machine	Main Mission Operative
Mission Of The Darians	Main Mission Operative
Dragon's Domain	Main Mission Operative
The Testament Of Arkadia	Main Mission Operative