Mark St. Cyr
Acting·November 16, 1987 — 38 years old
Mark St. Cyr is an American actor native of Louisiana.
Known For
The Menu
2022·7.2
Law & Order: Special Victims Unit
1999·8.0
Going in Style
2017·6.7
Chicago P.D.
2014·8.4
Person of Interest
2011·8.1
High School Musical: The Musical: The Series
2019·8.0
Elsbeth
2024·6.7
High School Musical: The Musical: The Holiday Special
2020·7.4
Root Letter
2022·5.2
The Housesitters
2019·6.5
Triple Threat
2020·6.0
Filmography · 15
—Tender—Snare2025A Spicy but Not Too Spicy Plumber2024ElsbethTVRonan Gaines2022The MenuDave2022Root LetterAdam2021John DoeMark2020High School Musical: The Musical: The Holiday SpecialSelf2020Triple ThreatCaleb2019High School Musical: The Musical: The SeriesTVBenjamin Mazzara2019The HousesittersEric2017Going in StyleDJ (uncredited)2014Chicago P.D.TVArthur Burton2011Person of InterestTVAirport Cop1999Law & Order: Special Victims UnitTVJamal Turner