I love that episode, personally, but I typically like every episode having to deal with the big story arcs of the show.
They call CSM a few names throughout the show. I think his official behind-the-scenes name was "Cigarette Smoking Man," but that doesn't mean the characters can't call him other things.
I suppose you could look at the credits and see how he's listed.
Coming late to the party . . ..
By coincidence, I was reading the novelization of the first movie a few weeks ago and, yeah, he's referred to as "the Cigarette Smoking Man" throughout. This struck me as a bit odd, to be honest, but I'm not sure what else the poor author (Elizabeth Hand) was suppose to do if that was what he was called in the script.
Well, they could have just called him CGB, or CGB Spender.
Had that been established back in 1998, when the movie came out? I don't think so.