Zacky Vengeance with Synyster Gates live in Nova Rock Festival - 2014
Zacky was born to Maria and James Baker in Olympia, Washington, and later moved to Huntington Beach, California along with his older sister Zina and younger brother Matthew, during his high school years. Zacky attended Huntington Beach High School, and formed Avenged Sevenfold there with M. Shadows and The Rev. Before Avenged Sevenfold, his first band was a crust punk band called Society Down. He said before that a demo exists, but it was lost years ago. After Society Down, he formed a punk band called MPA*, which stands for Mad Porno Action. He implied that they were both unsuccessful. Baker came up with his stage name "Zacky Vengeance" because he wanted to get back at all the people from his youth who doubted his potential. He also came up with Jonathan Seward's stage name "Johnny Christ," saying it suited him. Vengeance was also responsible for the creation of the initialism "A7X". He is of Italian and German descent.