Jonnie is a character in the Grand Theft Auto series who appears as a main character in Grand Theft Auto Advance. Jonnie is a bartender in the Red Light District of Portland Island, Liberty City. Jonnie and Vinnie are old friends, and Mike finds Jonnie after being informed of this by 8-Ball. Jonnie then employs Mike to do various missions, which are intended to pay off Vinnie's debt to him. The missions include rescuing his drunk girlfriend, collecting parts for a 'special brew', destroying a bar using explosives in an Idaho, collecting a rocket launcher from Portland Harbor, stopping a smoking bill and collecting money to pay off Jonnie's debts. Whilst Mike is collecting money for Jonnie's debts, Jonnie is murdered in his bar by Vinnie. Although Mike believes the Uptown Yardies were behind the murder, as Jonnie owed their leader, King Courtney, money.