Currently, we still don't know which portrait is Reginald. He's listed in the game's credits, but he's not one of the portraits guarding a secret passage. See this discussion. - Nick O'Demus 07:17, January 12, 2010 (UTC)

Has anyone found out who he is in the meantime?--Rodolphus 18:56, January 23, 2010 (UTC)

Could he be one of the portraits in Gryffindor Common Room? – FredWiltersen (talk) 07:32, August 21, 2013 (UTC)