In no order -
John Cougar Mellencamp
Richard O' Brian (as Dick Turpin)
Michael J Fox
(btw. Bryan, John C M., and Rick Springfield were virtually unheard of in the UK at that time. I used to be able to buy an American magazine from a newsagents near my college. I think it might have been called 'Noise' or something like that.)
Who's on your list?