After analyzing the transcripts I reviewed how much The Man in the Wall has spoken dialouge and who he interacts with.
This is officialy his first appearence he makes in the game. He has 4 lines of dialouge. 3 lines are directed to Kay and 1 is directed to the Operator.
The Man in the Wall is credited in this quest as ???. It has 6 lines of dialouge but while directed to the Operator it comes as 2 seperate option sets for which the player has to chose from.
In here he has 4 lines of dialouge. All are to the directed to the Operator and 2 are directed to the Lotus.
In the quest The Man in the Wall has 14 lines of dialouge. 3 lines directed to the Operator. 1 line directed to Loid, 1 line directed to Fibonacci, 2 lines directed to itself, and 7 lines directed as phase changes within the quest.
The Man in the Wall does not have any lines of dialouge within this quest but it reference heavily by the Lotus, Loid, and Operator.
In 1999 it appears as 2 seperate characters Major Neci Rusalka and itself. As itself it has 17 lines of dialouge. 10 line are directed to the Drifter and 7 lines are directed to Albrecht Entrati. As Major Neci Rusalka she has 14 lines of dialouge. 6 lines are directed to Arthur, 2 lines are directed to Viktor, 3 lines are directed to Albrecht Entrati and 3 lines of dialouge are general announcements.
This is quest The Man in the Wall has 5 lines of dialouge all directed to the Operator as it represent the devil on his shoulder throughout the quest. Pushing him let his anger get the better of him.