Hi, yes that was me! I was indeed cosplaying Jamie Madrox aka Multiple Man, as he is one of my favourite comic book characters.
I have done the 11th Doctor at previous conventions but after seeing all the comic book characters at LFCC this year, I really wanted to do one of them for Collectormania. For anyone who was there for both days we did Gambit and Rogue on the Saturday and Multiple Man and Domino on the Sunday.
I'll be going to more conventions next year. Got to improve on the cardboard cut out for them, which may be a little difficult! But I'm sure my 'duplicate' will make an appearance again soon.