Arvel Crynyd was the leader of the A-wing-filled Green Group during the Battle of Endor.

Crynyd led his squadron into the fleet of Star Destroyers over Endor to disable the ion cannons to allow the Alliance Fleet through. At the climax of the battle, he was a leading part in the strafing run of key locations on the Star Dreadnought Executor when anti-fighter fire struck his A-wing, sending it careening out of control. By circumstance or by the will of the Force, his fighter plowed into the un-shielded bridge of Executor, killing himself as well as Admiral Piett and his bridge crew instantly. With control lost, and in the middle of a battle maneuver, the mighty warship crashed into the second Death Star, thus turning the tide of the battle.

His name was later applied to a New Republic Medal of Bravery, which was one of the New Republic's most prestigious honors. An Imperial-class Star Destroyer captured at the planet Milagro was also renamed Crynyd in his memory.

]Arvel Crynyd was played by Hilton McRae in an uncredited performance in Return of the Jedi.
Crynyd was incorrectly referred to as "Rogue Leader" in Star Wars: Rogue Squadron III: Rebel Strike, specifically the mission to bring down Executor, because the game reused soundclips of other wingmen in the game.