This is my fan cast for the Flash (Barry Allen will only appear in flashbacks because I can't think of anyone for Wally West/ Kid Flash):
Ryan Kwanten as Wally West/ Flash III
What can I say? He's perfect.
Neil Patrick Harris as Barry Allen/ Flash II
I was going to cast Michael Weatherly but I have him as a young Alan Scott.
John Wesley Shipp as Jay Garrick/ Flash I
I know a lot of people cast him but look at him. He is Jay Garrick.
Ewan McGregor as Mirror Master
I know he's not a popular pick but I think he could work as a villian.
Josh Hartnett as Zoom
Clive Owen as Captain Cold