Portraits revealed through your current reading position.
The scarred, rage-driven zealot of the Sons who betrayed Darrow and Ares to the Jackal, then vanished.
Harmony, the vengeful Red who trained Darrow and lost her children to the mines, came to believe the Sons had sold out the rebellion by compromising too much—especially after Darrow refused to detonate the bomb she gave him to kill the Sovereign on Luna. Embittered, she told the Jackal who Darrow really was; his presence in the Jackal's office confirmed her claims. When she then discovered Fitchner/Ares was himself a Gold, she gave him up too, handing over Tinos's coordinates.
The Jackal used her intelligence to let the Sons 'rescue' her, then loosed his kill squads; an hour before they came, Harmony disappeared. Her betrayal got Ares killed and nearly doomed the Rising, and her whereabouts and intentions are unknown.
A scarred Red woman driven by rage and grief; her look otherwise undescribed here beyond the marks of a hard, vengeful life.
A fugitive traitor within the Sons; the zealot whose betrayal killed Ares and exposed Darrow.
Also appears in books you've already read — spoiler-safe to their endings: