Since the Disguise questions didn’t distinct between headcanon and what has been described in mission reports, and my non-existent agents cannot actually do anything, I may need to list my rather random answers here, so that the numbers for “actually mentioned” may be decreased appropriately:

D1: Do your agents use disguises?
Yes, but only when they don't already blend in or spend the entire mission hiding under a bed (in a closet, behind the walls, etc).

D2: What are your agents aiming for when they wear disguises?
They try to blend in with their surroundings with something that will be at least probable throughout the entire mission (unless I get an idea that’s more funny).

D3: How thoroughly are your agents changed when they wear a disguise?
It depends on the particular agent. (As far as I can see now, my agents will be a World of Warcraft night elf druid and a human from World One, and their missions will mostly be in the potterverse, where the night elf needs a change of species, but the human doesn’t.)

HG

My agents have toyed with the 'canon characters not seeing them' effect a fair bit. Of particular interest would be my final interlude to date, involving the Blackout.

Don't forget about Fourth-Wall-breaking canon characters!

I've gone for the minority (of one) opinion that there's no such thing as SEP fields and sticking wires on the back of a bit of fabric is a bloomin' stupid idea. However, I'm not adverse to other people claiming there's SEP fields in the PPC (it would be quite difficult to claim they haven't), and will merrily theorise about how they work. Just don't expect me to mention them in my stories. ^-^

hS

I can't take it if I haven't done any missions? Aw...

Oh well. Soon.

Sorry I wasn't involved when this was being discussed in the first place, but:

You ask a couple of times, "Do your agents directly mention X?" Does that mean strictly in the agents' dialogue, or do you mean something like "Is X directly mentioned in your missions?" or "Do your agents know about/believe in X?" 'Cause my agents never mention SEP fields or canon-cloaking in their dialogue, but I do mention them in the narrative, sometimes obviously as part of the agents' thoughts (e.g. "[Nume] trusted the SEP field to keep [himself and Brightbeard] from notice"). I would answer No to the first question, but Yes to either of the other two.

~Neshomeh