Tony Dio is a character in Grand Theft Auto 1 who works for Bubby. The protagonist drops off the drugs to Tony during the mission Gangsta Bang - Phone 2. Interestingly, the player can kill Tony after he picks up the drugs and still successfully complete the mission. Killing him provides alternate dialogue afterwards. However, killing him before he picks up the drugs will result in a mission failure.
- Tony is the first determinant character in the Grand Theft Auto series.