- "There's something I want to see down on Level 4."
"Like I said—you can't get to Level 4."
- ―Amilyn Holdo and Leia Organa
Level 4 was one of the lowest levels on the planet Coruscant's subterranean underworld. The level was supposedly inaccessible, but entering it was possible. A lost museum was located on the level, and Amilyn Holdo attempted to search for it while on Coruscant with Leia Organa.
- "The Right Wrong Turn"—Star Wars Adventures 25 (First appearance)