Originally Posted by Mr. Dent
He's not European. That is essential to Quicksilver's character. I don't care if he can act like a jackass, if he's not Euro then he isn't Quicksilver. Not to mention Quicksilver isn't just a jackass, he has to be able to capture the range of emotions that comes with his care for Wanda. That said, she probably won't even be in this and for all we know the character might not be anything more than a kid who became a mutant.
Meh, if Peters can't mimic either Fassbenders not-quite Irish accent OR McKellen's extremely proper English accent, you're right. He doesnt deserve to be an actor let alone play Magneto's son. But how is British any better than an American accent when you have a character who was born in Nazi Germany?
Quicksilver is primarily a jackass. And, as you said, if SW isn't in this film, he will have no reason to be anything other than a jackass. If she is, this is yet another thing I have faith Evan Peters, as a working Hollywood actor, can pull off.