Do any of the housemates remind you of anyone famous?
Laura reminds me of Deborah Kerr, and Jackson has a slight look of Tom Hardy. Alex is so bland he reminds me of Mr nobody.

Jackson [to me], looks more like MC Harvey (So Solid crew) and Jason looks like Daniel Craig.

On some angles, Alex has the look of a young, non-ginger Paul O'Grady

Jason looks a bit like pro wrester/actor Batista.

Thinking about it Batista was in both Guardians of the Galaxy and Spectre both of which Jason body doubled in so it may have been Batista he was doubling for.