Trevor is a career criminal and former bank robber with a complicated past, who later founded his own company, Trevor Philips Enterprises, operating with drug dealing and weapon smuggling in Blaine County. He is friends with Ron Jakowski and Wade Hebert, who work for his company, as well as the oldest and best friend of Michael, whom he believed to be dead for almost a decade after he faked his death to retire from the criminal life. Trevor is known to have be reckless and aggressive.