Mariah Rose Faith Casillas
Acting
10
Acting Credits
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
Dirty Laundry
Self - Guest
Artists On Artists On Artists On Artists
Genevieve Peters
Parlor Room
Self
Nightmare Time
Alice Woodward / Webby / Harmony Jones / Doug / Aerobics Coach / Casey / Villager 3 / 3-Girl Creature
Nightmare Time
Zoey Chambers / Steph Lauter / Webby / Alice Woodward / Woman
REALM
Shira Masterling
Nerdy Prudes Must Die
Stephanie Lauter/ Caitlyn
Hey, Melissa!
Melissa
Filmography
Fesspool
2026
as Self
The Great Debate - Tweeters Vs. Tik Tokers
2025
as Self
REALM
2025
as Shira Masterling
Parlor Room
2025
as Self
Nerdy Prudes Must Die
2023
as Stephanie Lauter/ Caitlyn
Hey, Melissa!
2022
as Melissa
Dirty Laundry
2022
as Self - Guest
Artists On Artists On Artists On Artists
2021
as Genevieve Peters
Nightmare Time
2020
as Alice Woodward / Webby / Harmony Jones / Doug / Aerobics Coach / Casey / Villager 3 / 3-Girl Creature
Nightmare Time
2020
as Zoey Chambers / Steph Lauter / Webby / Alice Woodward / Woman