First Appearance Of Colossus Atomm April 28, 2009 Marvel No Comments Colossus (Piotr Nikolaievitch Rasputin) Created by Len Wein and Dave Cockrum, Colossus first appeared in Giant-Size X-Men #1 (May 1975) giant xmen 1 -astonishing -uncanny, 5, 63, “” [Continue Reading...]