Colossus Was Supposed To Become A Breakout X-Men Character Before Deadpool
By DEVIN MEENAN
Chris Claremont, who wrote "X-Men" from 1975 to 1991, explained during a 2018 interview with SYFY about how he guided the characters over his legendary run.
The "X-Men" became an international team: Nightcrawler was German, Wolverine was Canadian, etc. Claremont adding Colossus' Soviet background was the most "radical" choice of all.
Claremont didn’t push Colossus as the main character, saying, "There are a lot of big powerful male guys, let's play with the other characters, let's see who actually surfaces."