Green Lantern Corps
Jo Mullein
A detective with a different kind of power ring.
Sojourner “Jo” Mullein is a former soldier and New York police officer assigned to the distant City Enduring. Her debut, Far Sector, follows a rookie Green Lantern investigating a murder in a society that has suppressed emotion. It is a complete twelve-issue mystery that requires no earlier Lantern reading.
Continuity: Main DC comics continuity. Far Sector is a self-contained introduction; Green Lantern (2021) follows Jo into the wider Corps.
- Affiliation
- Green Lantern Corps
- First appearance
- Far Sector #1 (on sale November 13, 2019)
Story history — Career history and ring mechanics — spoilers for Far Sector and Green Lantern (2021)
Jo brings experience with military and police institutions to a city whose official peace depends on suppressing emotion. Her investigation tests whether maintaining order is the same as protecting the people who live under it. Created by writer N.K. Jemisin and artist Jamal Campbell, she leads Far Sector (2019–2021), with letters by Deron Bennett. Her experimental ring recharges itself over time rather than through the usual external battery, but its available energy remains limited. That distinction creates real constraints during the story’s escalating crisis; “no battery” does not mean “cannot run out.” After Far Sector, Geoffrey Thorne’s Green Lantern (2021) brings Jo into the wider Corps ensemble. Following the Central Power Battery’s destruction, she investigates the attack while other Lanterns struggle without their rings. The move from one remote city to a Corps-wide crisis changes the scale of her work, while keeping her investigative role central. Her self-contained debut and later ensemble appearances are separate reading commitments.
Signature: An experimental ring that recharges itself, with a finite supply of energy available at any moment.
Reference scope: The linked publisher material supports the origin, continuity distinctions and reading recommendations. Later developments are kept in the closed history.
Profile reviewed 2026-11-04.
