1 Though Hugh Jackman was the perfect Wolverine, Dougray Scott was first choice. Imagine a different Logan!

2 Halle Berry nailed Storm, but Angela Bassett was considered. What a powerful alternative!

3 Michael Jackson wanted to be Professor X, but Patrick Stewart stole the show. Iconic!

4 Before James McAvoy stepped in, Daniel Radcliffe almost played young Professor X. Mind-blowing!

5 Keanu Reeves could've been Cyclops, but James Marsden was a stellar choice. Optic blasts galore!

6 Would you believe that Terrence Howard was considered for War Machine before Don Cheadle? Shocking!

7 Almost cast as Beast, Bob Hoskins could've brought a different energy to the character. Interesting!

8 Rebecca Romijn rocked Mystique, but could you imagine Sigourney Weaver in the role? Intriguing!

9 Joaquin Phoenix was almost cast as Beast before Kelsey Grammer took over. A hairy situation!