Mutant Rights Activist
|Citizen of the United States with no criminal record.|
|Nation or Planet of Origin|
|Base of Operations|
|Xavier Institute, Salem Center, Westchester County, New York|
Mutation resulting in telepathic abilities and total memory recall. Capable of sensing other mutants and unleashing their potential mutations.
Excellent hand-to-hand combatant with training in the martial arts.
Cyber Glasses: Eye wear designed to record and transmit data to a central computer database.
Uncanny X-Men #132 (April, 1980)
X-Treme X-Men #1 (May, 2001)
|Chris Claremont & John Byrne|
Recruited by Professor Charles Xavier as his sixth member of the original X-Men, Tessa Niles was not asked to join the ranks of the team, but to instead infiltrate the Hellfire Club as Sebastian Shaw's (Black King) assistant.
Niles assignment eventually ended with the disintegration of the Hellfire Club and she joined her teammates in the X-Men under the codename of Sage.