What is bothering me for a long time...

[soratothamax]

...only none of those make sense as sleeper agents because the both Okiya and Scar Akai are suspicious currently and regardless of who is who, will almost certainly continue to be plot relevant once their identities are revealed. I'm talking about someone like Cafe Poirot waitress Azusa Enomoto for example. (No, I don't think Azusa is a B.O. agent btw.)

True...you mean like someone who is not announced at all yet, but is a person who's always around conan without him knowing, and turns out to be a part of the BO? If that's what you mean, that would be awesome!

of course, what if Bourbon is someone TOTALY unexpected? that would also be interesting....

[Xytan]

Chekhov, what is your definition of "sleeper agent"?

As for the sleeper agent, it's a character who has been around awhile but doesn't have any lingering suspicions attached to him/her, then out of the blue becomes plot relevant. In this case, after a long period of time where Conan/the readers assumed this person was a normal civilian, he/she is suddenly revealed as a B.O operative which jars everyone's expectations.

Yamamura's Grandmother!

I'm not really one to disect DC, I just like reading it - I do however want to say that this thread has valid points, provided what was said is true and factual.

[Introuble]

of course, what if Bourbon is someone TOTALY unexpected? that would also be interesting....

Like Araide? XD
I wish Koumei was part of the BO...

[soratothamax]

Now if Araide was Bourbon I would totally be shocked. Imagine him whipping out a pistol and saying evil words...especially after he said "Vermouth has a good heart" for pretending to be like him. lol

[randompi314159]

That would be such an awesome plot twist, and a good way to re-incorporate Araide back into the plot.

[AICHAN]

Vermouth using Aptx is only a rumor. Where did that rumor come from?

a rumor?
that's what i also thought when i read vol 42...you know when Jodie said"why don't you age" well that's the first explanation that came to my mind...that would explain why she  searched haibara firstly in the elementary school,instead of the Highschool or the university

Spoiler:

i think Vermouth knew the effects of Aptx and used it,that's why she assumed Sherry took the pill and became smaller...

[Chekhov MacGuffin]

Vermouth using Aptx is only a rumor. Where did that rumor come from?

a rumor?
that's what i also thought when i read vol 42...you know when Jodie said"why don't you age" well that's the first explanation that came to my mind...that would explain why she  searched haibara firstly in the elementary school,instead of the Highschool or the university

Spoiler:

i think Vermouth knew the effects of Aptx and used it,that's why she assumed Sherry took the pill and became smaller...

The problem with the Vermouth taking the current form of APTX 4869 theory is that the time frame is potentially off. According to chap 423.10 and 11, Atsushi/Atsishi (Can anyone tell me which one is his real name?) went off to research what was presumably the APTX4869 30 years before the present storyline date. (Now that I think about it, he's pretty old to be Haibara's father; he would probably be at least fifty in the current time if he was still alive. Elena was probably younger than he was.) He died when Haibara was a kid so I'm going to presume there was about a ten year break in the research. Shiho Miyano has succeeded him fairly recently; she probably only has a year or two at most of APTX project work under her belt after graduating. It is likely that the mouse shrinking results of APTX 4869 Shiho observed have not been reported to her superiors, otherwise the superiors would not be using it as a poison if there was a risk of it deaging someone. I would also think the Organization would have taken deaging into consideration when looking for Shiho if they knew about it, since Pisco exclaimed he had no idea the research had been taken as far as it had. Thus, I don't think Vermouth would have taken the current incarnation of APTX 4869 since it's deaging effect is apparently unknown and is currently being used a poison. 
Also one other thing to note about Vermouth is that she may predate even Sharon Vineyard. Sharon’s mother may also Vermouth because she died in a fire on the day Sharon debuted which is highly suspicious and very similar to the way Sharon Vineyard "died" around Chris' debut. (vol 35-1 page 2) Sharon may not be Vermouth’s first alias. Vermouth would have to be 70-85 if Sharon's mom was the same person. If this is the case, it also likely means that APTX 4869 in its current incarnation - a project started by the Miyanos - isn’t the source of Vermouth’s apparent failure to age. Shiho’s parents and their experiments are too young to account for the timepoint. It would have to be Shiho’s grandparents or something else.
Now Haibara did say Kudo was part of a project the org had been working on for half a century. (The soccer stadium case) It could be that APTX 4869 is one sub-project of a cluster of projects looking at deaging and Vermouth was a part of one of these other ones that long predated the story timeline. APTX 4869 may have evolved out of this earlier project after Vermouth was a success case that couldn't be replicated. It might explain why she hates the Miyano parents and why she is the boss's favorite.

[Nyarl]

Atsushi/Atsishi (Can anyone tell me which one is his real name?)

厚å

[Chekhov MacGuffin]

Atsushi/Atsishi (Can anyone tell me which one is his real name?)

厚å

[Kor]

(Now that I think about it, he's pretty old to be Haibara's father; he would probably be at least fifty in the current time if he was still alive. Elena was probably younger than he was.)

Not really. I'm 18 and my mother is 52.
In the Miyanos' case, they already had a child so it's not so odd to wait a few years before the next one.
In my case...my parents married late I suppose, but I've encountered people in my age with parents even older.

[KaitoGirl]

WOW! When I read the first post I was really suprised, really REALLY nice theory, and it can be true. On the anime this little details can't be noted because the anime doesn't know who is the boss, but Gosho maybe have already an idea of that. So other people though that it wasn't that important and that's why that little details aren't there.

And the thing of vermouth, I post something about it, but Chekhov beat me that time, well I know is that maybe Vermouth took the APTX but not telling anybody, and that's why she knows about Sherry/Haibara. This is possible because as we know Vermouth is boss favourite and also she likes keep her secrets.

(If someone already put this, really sorry, it's just that I don't have enough time to read all the post because someones are really extensive xOx)

[KaitoGirl]

(I) After a few hours of reading and doing other things, I get bored and started playing... (Don't laugh)... playing Sailor Moon (DON'T LAUGH!) and suddenly came to my mind.

Vol. 48, chap. 9 page 3. When Yoko Okino uses her cell phone in front of Conan, Conan has a flashback of Vermouth. He blames it on him getting paranoid. What if he's not?

The reason because Conan though that he was becoming paranoid (and did not suspect about Yoko) could be that: When Yoko dialed the number, Conan didn't recognize the firsts buttons (0858*), as we know, that's the code (it's a way to say it) of tottori's area (and Conan thinks that the boss is on Tottori), so, first: Yoko lives in Beika, and the boss IS on Tottori, second: Conan didn't recognize the song "Seven Children" when she dialed the phone number.

Well, that's all I can said, about the rest of the proofs, I think that you're right texascoffegirl.

*About the code of Tottori, you can chek by yourselves, is on File 470

[Abs.]

We've gone over this a number of times, but the mail address DOES NOT have a Tottori area code.

[Chekhov MacGuffin]

We've gone over this a number of times, but the mail address DOES NOT have a Tottori area code.

I know we have gone over this, but are you sure? I assumed that Aoyama Gosho changed the number only for the purpose of preventing prank calls and in spirit the number is supposed to be from Tottori... hence Haibara's reaction to Kurayoshi city and the rest.

[Abs.]

We've gone over this a number of times, but the mail address DOES NOT have a Tottori area code.

I know we have gone over this, but are you sure? I assumed that Aoyama Gosho changed the number only for the purpose of preventing prank calls and in spirit the number is supposed to be from Tottori... hence Haibara's reaction to Kurayoshi city and the rest.

Well yeah, the boss may still be from Tottori/be based in Tottori.  However, Conan explicitly explains (in that link I provided) that although he thought the "Karasu," or "crow" part sounded like 0858, it is #969 instead.