Tycho Celchu (pronounced /'taɪko 'sɛltʃu/) was a renowned starfighter pilot for the Alliance of Nations, serving as Rogue Leader for approximately a decade, before becoming a general in the Multiversal Federation. A native of Alderaan, he joined the Imperial Navy as a TIE Fighter pilot. He was speaking with his family by HoloNet when Alderaan was destroyed by the first Death Star, an event which pushed him into defecting to the Rebel Alliance. Celchu quickly became an ace pilot with the elite Rogue Squadron. There he fought alongside Wedge Antilles and Sera, who became his lifelong best friends.
Celchu flew in the Great Battles of Endor and The Resena Line, as well as in several campaigns for the AON during which he became the second-in-command of Rogue Squadron and began a romantic relationship with the intelligence agent Winter. In 1824 N.E, during a spy mission to Coruscant, he was captured by Ysanne Isard and imprisoned in the dreaded Lusankya prison. She attempted to brainwash him, but he resisted and was eventually able to escape. He fell under a cloud of suspicion due to his time there, with many fearing he had been turned into a double agent. He later helped Antilles and Sera improving the Rogue Squadron and aided in Operation Downfall.