Diggory head boy?

[Michelle Crowe]

Ok, just found this at TLC:

ROBERT PATTINSON

With no big-screen experience, Robert Pattinson beat a host of other 
actors to the part of Hogwarts head boy and all-round good guy Cedric 
Diggory in Harry Potter and the Goblet of Fire, due out this year. His 
only other screen work was in the TV film Sword of Xanten, broadcast in 
America last year.

This fresh-faced, photogenic 18-year-old so oozes charm and likeability 
that casting directors are predicting a big future. Despite his 
initiation via Harry Potter, Pattinson cites Tim Burton and Todd Solondz 
as directors he admires for "breaking boundaries".

Why do I have NO recollection that Diggory was head boy? Anyone?

Michelle