Green Lantern Corps
Katma Tui
Korugar’s Lantern and John Stewart’s mentor.
Katma Tui is a Green Lantern from Korugar and an important mentor in John Stewart’s history. Her service shows how the Corps’ reputation can differ from one world to another.
Continuity: Main DC comics continuity; this profile follows the cited era rather than asserting a permanent present-day status.
- Affiliation
- Green Lantern Corps
- First appearance
- Green Lantern (1960) #30 (1964), second story
Story history — History and later developments — spoilers
Katma succeeds Sinestro as Korugar’s Lantern and later trains John Stewart; their relationship becomes a marriage. She also recruits Rot Lop Fan by translating the idea of a Green Lantern into terms he can understand. Her death in Action Comics #601 is part of John’s later grief, but her teaching and service matter independently of that tragedy.
Reference scope: DC supports the mentoring and later story context. The independent #30 issue index explicitly identifies Katma’s debut in the second story.
Profile reviewed 2026-11-04.