Gelleric held the rank of Jedi Master within the Jedi Order as the Galactic Republic neared its end. Quinlan Vos, while writing in the Book of Sith, considered the possibility that the double-bladed lightsaber might be a Sith weapon, noting that Gelleric was the only Jedi he could recall ever using one.
The name Gelleric is a form of tuckerization honoring Eric Geller, a friend of the writer Daniel Wallace who previously worked at the Star Wars news website TheForce.net.