Joan Vail

Origin
Joan Vail is the Terrestrial paramour of a man named Greg Zohr. Zohr a member of copper-skinned The Rihns,  a peaceful people descended from the aboriginal Martians and the first terrestrials from Earth to settle on Mars. Because of Karragon, Tryant of Mars, spread animosity between the Terrestrials against the Rihns, Joan and Greg are arrested by Karragon's Telist Storm Guards and put to forced labor.

Abilities
Joan convinces Zohr to not assassinate Karragon, instead working to design a weapon for the dictator's defeat. She doesn't display any skills of which to speak, although she does present an intelligent, strong personality.