I am impressed at how quickly this thread has grown.
Glen Robbins as Hunter? The mother's dopey fiance from Australian sitcom Kath & Kim? Hilarious!! Although he actually does look a lot like Hunter in WC1 if a bit too old (Hunter is only 27).
I first time I ever saw Malcolm McDowell was in WC3, but since I've seen Clockwork Orange and If..., from his heyday as an actor, that's what I associate McDowell with now. When he plays Tolwyn he speaks with a posh English accent, his real accent is a Leeds Yorkshire accent, though his accent seems to have been Americanized from living in California for years. But that's the McDowell I think of now, the young rebel from Clockwork Orange and If....
To me Halcyon is the archetypcal, square-jawed, clean-cut, middle-aged American colonel, so I don't know about Patrick Stewart playing him.
Freddie Prinze Jr. could play Catscratch, but he sucks, and there are hundreds of other popular young actors his age to choose from anyway.