Originally Posted by Dr. Evil
Never heard of the guy.
I assume you're talking about the guy who Tweeted, and not Rafe Spall? I haven't heard of the Tweeter either, but Rafe was in Prometheus and Life of Pi, and made those small roles stand out. Rafe is also a *looong* time collaborator with Wright, and MEW obviously worked with Wright in Scott Pilgrim, so there's definitely a connection there.
It may be fancasting at this point, but if there's any truth to it, these two would make a terrific Hank and Janet.