He and Oliver Rivers must be Hufflepuffs. JKR made up 5 students per gender in each house.
The boys are:
Harry, Ron, Neville, Seamus, Dean
Slytherin: Malfoy, Crabbe, Goyle, Zabini, Nott
Ravenclaw: Anthony, Michael, Terry, Kevin, Stephen
Hufflepuff: Justin, Ernie, Wayne, two unknowns.
As they are the only males left, Roger and Oliver are Hufflepuffs.--Rodolphus 13:39, October 2, 2011 (UTC)
Bumping--Rodolphus 13:17, October 3, 2011 (UTC)
I Agree with Rodolphus. I made a table.Zaki alwi 14:44, March 7, 2012 (UTC)