|The character Andross did not originate from fanon, and more information can be found on their respective wiki(s). You may read more about him on the following wiki(s):|
Andross was one of Corneria's brightest scientists, but he always wanted to push his research to the limits. He slowly descended into madness and began conducting more dangerous experiments, despite receiving several warnings from General Pepper. As a result of one of Andross's failed experiments, a devastating explosion leveled a portion of Corneria City and claimed many innocent lives. Andross was arrested and banished to the toxic planet Venom. He was expected to die quickly due to Venom's harsh conditions, but instead, he managed to raise an army from Venom's inhabitants and continued to conduct experiments. With his vast newfound Venomian Army and his advanced research, he plots and executes a large-scale attack on the Lylat System.
Andross contacted the greedy Pigma Dengar prior to the original Star Fox's scouting mission of Venom, promising riches to Pigma if he betrayed his team. Pigma agrees, and leaves James McCloud and Peppy Hare open to an ambush from the Venomian Army. Peppy escapes, but James and his Arwing are enveloped by a poisonous gas bomb, leaving his true fate unknown.