As a general rule Paul Smith shirts come the same as other makes, but they tend to have stiffer collars due to the quality which can make them seem a little tighter. Also look at the collar buttons, if there is only one button on the collar band go f...
well Paul Smith are great but have a look on Gucci and Prada they have good ones ... if you look for Inglish design go for Paul Smith or any store at Sevile road.
I don't think they're the same person. It looks like they were both in the same episode, but played different characters. Paul Wahlen is only in this episode, so might not be an actor, or might have left acting.