003 Warpath
As a job, James Proudstar idolized his older brother the X-Man known as Thunderbird. When his brother was killed, Proudstar swore to follow in his footsteps, and took on the mantle of hero. His relationship with the X-Men has been uneasy at times, but over the years he has come to terms with his brother's death, and become an invaluable member of the team.