What makes John Stewart unusual among Green Lantern recruits in the DC series Lanterns?

John Stewart is unusual because the Guardians recruited him directly in the DC series Lanterns.

The series describes Stewart as the first Green Lantern in the Corps’ history to have been recruited by the Guardians of the Universe instead of being chosen by a power ring. That makes him an anomaly within the show’s version of Green Lantern lore.

Stewart is introduced as a new recruit who is trained by the experienced Hal Jordan. The character is also described as both a Marine and an artistic architect, giving him a combination of military discipline and creative ability. The show uses these traits to distinguish him from Jordan and to build their opposing-partner dynamic.

John Stewart still possesses the Green Lantern powers and is associated with a power ring; the unusual point is how he entered the Corps. He is not an alien, and Sinestro is not his trainer. This detail is specific to the series’ characterization and should not be confused with every version of Stewart’s origin in DC Comics.