When Wolf's team was hired by Andross to take down Star Fox, Wolf wanted nothing more than to fulfill these orders and prove himself to be as good, or better, than Fox McCloud. Wolf then sought to destroy Star Fox and protect Andross, so that he may be feared throughout the galaxy. He teamed up with Pigma Dengar, Andross's nephew, Andrew Oikonny, and found the mysterious Leon Powalski in a rough bar on Venom.
Following the ape's exile, when Andross offered Wolf money to lead a mercenary team against Fox McCloud and the Star Fox team, he jumped at the chance to see Fox fail. It was believed that Wolf had somehow been involved in the disappearance of James McCloud, who was Fox's father. Before the Lylat Wars, Team Star Fox and Star Wolf shared a long and bitter history with one another, despite mutual respect. It is also known that Wolf has been wanted by the Cornerian army for years, because of crimes such as larceny and treason. Not much is known about Wolf O'Donnell's early life other than he used to be the leader of a gang of space pirates, presumably the same pirates that duelled with the Cornerian army at Sector Z in a battle that left much space wreckage.
