The eavesdropper: round up the usual suspects

[jotwo2003]

No: HPFGUIDX 87860

Although I bet we won't find out until book 7, I thought it might be 
useful to list all the characters who may be the eavesdropper who 
overheard the prophecy, and why.

Severus Snape - he seems to be the favourite.  He was once a Death 
Eater so he would pass any information to Voldemort.  He's widely 
believed to be the spy who tipped Dumbledore off about Voldemort 
being after the Potters, presumably due to his life debt.  If he's 
the eavesdropper, then it will make the reader suspicious about him.  
It will also feed Harry's hatred of him, as he'd blame Snape for his 
parents' deaths.

Mundungus Fletcher - banned from the Hogs Head about 20 years ago.  
However, the eavesdropper heard the prophecy 15 years ago.  Therefore 
for him to be the eavesdropper we have to assume either that 20 years 
is a rounded up figure, or Dung tried to get into the pub after he 
was banned, and was spotted and thrown out.  He wasn't in the 
original Order of the Phoenix as he was not in the photo.  We're told 
that: "he's also very loyal to Dumbledore, who helped him out of a 
tight spot once".  Is this a hint that he was once involved with the 
Death Eaters?  On the other hand, he's a petty criminal, and doesn't 
seem the Death Eater type.  He's a humourous character, liked by 
Harry, and probably most readers, so if JKR wanted the eavesdropper's 
identity to be a shock, Mundungus would fit the bill.   

Ludo Bagman - he passed secrets to Voldemort, but claimed he that he 
thought he was collecting information for the good side.  He passed 
the information to Rookwood.  Could this have included the prophecy?  
Bagman was a dodgy character and we've seen him in a pub before, 
although this was The Three Broomsticks.  On the other hand 
Dumbledore says that the eavesdropper could not inform his master 
about the second half of the prophecy, which suggests that Voldemort 
was told directly, rather than indirectly, which means the 
eavesdropper has to be a Death Eater, whereas IMHO Bagman was just a 
dim sports hero. 

Crabbe Sr - in the graveyard, Voldemort tells him to do better this 
time.  However this could refer to general incompetence rather than 
failing to hear all of the prophecy.

Nott - Voldemort says the same applied to him, but again, it might 
not refer to a specific mistake on Nott's part.

Avery - he has already been seen failing to give Voldemort the 
correct information about retrieving the prophecy, so he may be 
generally useless.  However, his function as a character seems to be 
being tortured, simply to show how badly Voldemort treats his 
followers.

The unknown Death Eater - a character who has not been introduced as 
of OOP.

Any other suspects people want to add?

JoTwo