Biography

Mariah Rose Faith

Actress
Music Department
Soundtrack

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When a group of nerdy prudes at Hatchetfield High accidentally complete an ancient evil ritual, they unleash a powerful spirit into the halls of the school - and it doesn't like nerds.

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Nerdy Prudes Must Die (2023)

1 Video

6 Photos

Mariah Rose Faith Casillas came into the public consciousness in "The Guy Who Didn't Like Musicals" with the production group Team StarKid in Los Angeles. She then played Regina George in the first national tour of "Mean Girls." She has studied Film Direction in Los Angeles and has her own YouTube channel under her own name.

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Known for

Pulp Musicals

9.4

Podcast Series

Rose Stratford(voice)

Nerdy Prudes Must Die

8.0

Stephanie Lauter
Caitlyn(as Mariah Rose Faith Casillas)

2023

Nightmare Time

8.8

TV Mini Series

Alice Woodward
Stephanie Lauter
Webby
Woman
3-Girl Creature
Aerobics Coach
Harmony Jones
Melissa
Officer Doug
Tree-Person 4
Villager 3
Zoey Chambers

The Guy Who Didn't Like Musicals

8.4

Alice Woodward
Zoey Chambers
Melissa
Harmony Jones
Officer Doug
Ensemble

2018

Credits

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Actress

With Your Help The Guy Who Didn't Like Musicals Returns to the Stage!
Video
- Melissa (as Mariah Rose Faith Casillas)
- 2025
Cinderella's Castle
8.1
- Putrice Ashmore
- Justine Grizzwald
- Ensemble (as Mariah Rose Faith Casillas)
- 2025
Pulp Musicals
9.4
Podcast Series
- Rose Stratford (voice)
- 2021–2024
Workin' Boys
8.3
Short
- Zoey Chambers
- Woman (as Mariah Rose Faith Casillas)
- 2023
Nerdy Prudes Must Die
8.0
- Stephanie Lauter
- Caitlyn (as Mariah Rose Faith Casillas)
- 2023
Nightmare Time
8.8
TV Mini Series
- Melissa
- Stephanie Lauter
- Webby ...
- 2020–2022
The Guy Who Didn't Like Musicals
8.4
- Alice Woodward
- Zoey Chambers
- Melissa ...
- 2018

Music Department

Soundtrack

Cinderella's Castle
8.1
- performer: "Last Forever", "Facade", "Watch", "Watch (Reprise)"
- 2025
Nerdy Prudes Must Die
8.0
- performer: "High School Is Killing Me", "Bully the Bully", "Bury the Bully", "Go Go Nighthawks!", "If I Loved You", "The Summoning", "Cool As I Think I Am (Reprise)", "The Best of You" (as Mariah Rose Faith Casillas)
- 2023
Nightmare Time
8.8
TV Mini Series
- performer: "Nightmare Time 2 Theme"
- performer: "Nightmare Time 2 Theme, Part 4", "Next Time"
- performer: "Nightmare Time 2 Theme, Part 3" ...
- 2020–2022
StarKid Homecoming
9.6
Video
- performer: "Starship Medley"
- 2019
The Guy Who Didn't Like Musicals
8.4
- performer: "The Guy Who Didn't Like Musicals", "La Dee Dah Dah Day", "Cup of Roasted Coffee", "Cup of Poisoned Coffee", "Show Me Your Hands", "Not Your Seed", "America is Great Again", "Let It Out", "Inevitable", "La Dee Dah Dah Day (Soundtrack Version)"
- 2018