Acting · b. 1987 Mark St. Cyr Biography Mark St. Cyr is an American actor native of Louisiana. Acting A Spicy but Not Too Spicy Plumber 2025 The Menu Dave 2022 Root Letter Adam 2022 John Doe Mark 2021 High School Musical: The Musical: The Holiday Special Self 2020 Triple Threat Caleb 2020 The Housesitters Eric 2019 Going in Style DJ (uncredited) 2017 Agent-readable