Acting
Mark St. Cyr
Born 1987-11-16
Department: Acting
Biography
Mark St. Cyr is an American actor native of Louisiana.
Known For
Prominent works featuring Mark St. Cyr
TV
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Law & Order: Special Victims Unit
1999
TMDB4.0
Movie
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The Menu
2022
TMDB3.6
TV
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Chicago P.D.
2014
TMDB4.2
Movie
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Going in Style
2017
TMDB3.4
TV
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Person of Interest
2011
TMDB4.0
TV
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High School Musical: The Musical: The Series
2019
TMDB4.0
TV
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Elsbeth
2024
TMDB3.4
Movie
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High School Musical: The Musical: The Holiday Special
2020
TMDB3.7
Movie
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Root Letter
2022
TMDB2.6
Movie
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The Housesitters
2019
TMDB2.9
Filmography & Credits
Complete career catalog (15 titles)
| Poster | Title | Character / Role | Type | Year |
|---|---|---|---|---|
 | A Spicy but Not Too Spicy Plumber | Self / Appearance | Movie | 2025 |
 | Elsbeth | Ronan Gaines | TV Series | 2024 |
 | The Menu | Dave | Movie | 2022 |
 | Root Letter | Adam | Movie | 2022 |
| John Doe | Mark | Movie | 2021 | |
 | High School Musical: The Musical: The Holiday Special | Self | Movie | 2020 |
 | Triple Threat | Caleb | Movie | 2020 |
 | High School Musical: The Musical: The Series | Benjamin Mazzara | TV Series | 2019 |
 | The Housesitters | Eric | Movie | 2019 |
 | Going in Style | DJ (uncredited) | Movie | 2017 |
 | Chicago P.D. | Arthur Burton | TV Series | 2014 |
 | Person of Interest | Airport Cop | TV Series | 2011 |
 | Law & Order: Special Victims Unit | Jamal Turner | TV Series | 1999 |
 | Tender | Self / Appearance | Movie | — |
| Snare | Self / Appearance | Movie | — |