Darkknell, positioned at grid coordinates M-17 along the Hydian Way, was a celestial body found within the Darkknell system of the galaxy's Outer Rim Territories. Cassian Jeron Andor, a Rebel Alliance intelligence officer, operated on Darkknell under the assumed identity of "Aach," functioning as a contact for senatorial matters.
The initial canonically appearance of Darkknell occurred in the StarWars.com article titled "Where in the Galaxy Are the Worlds of Star Wars: The Force Awakens?," authored by Mark Newbold and released on January 29, 2016. Within the Star Wars Legends storyline, the planet known as Darkknell debuted in the novella Interlude at Darkknell, a collaborative work by Timothy Zahn and Michael A. Stackpole, featured in the 1999 collection Tales from the New Republic.