Clone pilot "Kickback" flew as Blue Four during the Battle of Ryloth.
Clone trooper pilot "Kickback" served as Blue Four at the Battle of Ryloth. He was one of the few pilots to survive the battle.
Rebel Alliance pilot Barion Raner served as Blue Four around the time of the Battle of Scarif.
During the Battle of Jakku, a member of the New Republic's 77 Squadron (which flew as Blue Squadron in the battle) used the callsign.
Resistance pilot Pallaris Ven flew as Blue Four with astromech droid BR-BA and perished in the Battle of Starkiller Base.
- Star Wars: Rogue One: The Ultimate Visual Guide
- Star Wars: Rogue One: Ultimate Sticker Encyclopedia
- Star Wars: Geektionary: The Galaxy from A - Z
- Star Wars: The Rebel Files
- Star Wars Helmet Collection 71
- Star Wars: X-Wing Second Edition — Guardians of the Republic Squadron Pack
- Star Wars: Battles that Changed the Galaxy