Acting
Mariah Rose Faith Casillas
Born 1995-12-29
San Diego, California
Department: Acting
Biography
Mariah Rose Faith is a trained actress, singer, songwriter, and filmmaker who has found success in musical theater and film. She first gained public attention on YouTube for her musical theater song covers. Faith is known for her roles as Regina George in the first national tour of Mean Girls and her work with the comedy theater group Team Starkid. She has trained with acting and vocal coaches in Los Angeles and collaborated with award-winning creatives.
Known For
Prominent works featuring Mariah Rose Faith Casillas
TV
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Dirty Laundry
2022
TMDB3.8
TV
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Parlor Room
2025
TMDB2.3
TV
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Nightmare Time
2020
TMDB0.0
TV
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REALM
2025
TMDB0.0
TV
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Artists On Artists On Artists On Artists
2021
TMDB5.0
Movie
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Hey, Melissa!
2022
TMDB0.0
Movie
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Nerdy Prudes Must Die
2023
TMDB2.5
The Great Debate - Tweeters Vs. Tik Tokers
Movie
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The Great Debate - Tweeters Vs. Tik Tokers
2025
TMDB0.0
Filmography & Credits
Complete career catalog (9 titles)
| Poster | Title | Character / Role | Type | Year |
|---|---|---|---|---|
| The Great Debate - Tweeters Vs. Tik Tokers | Self | Movie | 2025 | |
 | REALM | Shira Masterling | TV Series | 2025 |
 | Parlor Room | Self | TV Series | 2025 |
 | Nerdy Prudes Must Die | Stephanie Lauter/ Caitlyn | Movie | 2023 |
 | Hey, Melissa! | Melissa | Movie | 2022 |
 | Dirty Laundry | Self - Guest | TV Series | 2022 |
 | Artists On Artists On Artists On Artists | Genevieve Peters | TV Series | 2021 |
 | Nightmare Time | Alice Woodward / Webby / Harmony Jones / Doug / Aerobics Coach / Casey / Villager 3 / 3-Girl Creature | TV Series | 2020 |
| Nightmare Time | Zoey Chambers / Steph Lauter / Webby / Alice Woodward / Woman | TV Series | 2020 |