Free Mutants

Free Mutants were a group of mutants who fought the Sentinels.They were lead by Bishop.

Members
Bishop-leader

Roberto DeCosta/Sunspot

Claurice Ferguson/Blink

James Proudstar/Warpath

Members (who are also X-men)
Kitty Pryde/Shadowcat

Robert Drake/Iceman

Peter Rasputin/Colossus