Good idea to have Marcus the 'Wolverine' of BB10 go back in. He's one of the most memorable housemates IMO, one of the few who didn't seem to let BB get to him. Apart from his crush on Noirin, which to be fair did get a bit embarrassing, generally speaking he stayed true to himself as 'the irrepressible dark horse' and didn't bang on about being on an emotional journey or whatever. I think he was a true individual without putting on a false persona, i.e. a bit eccentric but not by inventing a fake crazy personality for the sake of it.