Separated at Birth: Attack Plan X!

L: [Uncanny] X-Men #1 (September 1963), art by Jack Kirby and Sol Brodsky (?)
M: [Uncanny] X-Men #104 (April 1977), art by Dave Cockrum
R: Marvel Knights 4 #24 (January 2006), art by Mike Allred
(Click picture to Fred Dukes-size)