Colossus

Colossus (1997)

Colossus Battlebook: Streets of Fire (1998)

X-Men: Colossus Bloodline (2005-2006)

X-Men Origins: Colossus (2008)

Reprints:
Colossus TPB: God's Country (1994)

See also:

Colossus (Piotr Rasputin) as member of Excalibur

Colossus (Piotr Rasputin) as member of X-Force

Colossus (Piotr Rasputin) as member of the X-Men