As usual I was looking into the code of LoLClient and I found this in HardcodedEndOfGameStats.class.asasm:
Section code: http://pastebin.com/MxdZFWHn
Else:
Koppa = Rammus
Link: No results ):

omgwhat = Ashe
Link: http://forums.na.leagueoflegends.com....php?t=1342935 (Platform Engineer)

MejainaStacks = Jax
Link: No results ):

Zileas = Singed
Link: http://forums.na.leagueoflegends.com...d.php?t=293417

DCool = Draven
Link: No results ):

Brackhar = Malzahar
Link: http://leagueoflegends.wikia.com/wik...ckhar%27_Hough

KarrieBear = Morgana
Link: http://forums.na.leagueoflegends.com...065656#4065656

Geeves = Teemo
Link: http://forums.na.leagueoflegends.com....php?p=1207266

Ponts = Warwick
Link: http://forums.na.leagueoflegends.com....php?t=1342935 (QA Analyst)

Banksy = MissFortune
Link: http://forums.na.leagueoflegends.com...04377#21304377

LampLit = Jayce
Link: No results ):

I think omgwhat is "responsable" of this secret feature
What do you think?