John Magaro was born February 16, 1983 in Akron, Ohio, the son of Wendy and James Magaro, and grew up in its nearby suburb of Munroe Falls. His father is of Italian descent and his mother is Jewish; he was raised in his mother's religion. His parents were teachers. While attending school within the Stow-Munroe Falls City School District, John began acting in local theater, including shows at the Cleveland Play House and the Kent State Porthouse Theatre at Blossom Music Center, and Weathervane Playhouse in Akron, Ohio. As a youth, John Magaro also appeared in television commercials, and had a role in a Rescue 911 episode.