
Brenna O'Brien
Known for Acting · 35 credits
- Born
- 1991-03-09 (age 35)
- Place of birth
- Brampton, Ontario, Canada
Biography
Brenna O'Brien (born March 9, 1991) is a Canadian actress. She is best known for voicing Rin in the anime series Inuyasha.
O'Brien was in the original pilot of The Middle in 2007 also starring Ricki Lake and Atticus Shaffer. This pilot was then re-created in 2009 with the current cast. O'Brien began her acting career at age 9, performing in local theatre productions and school plays. Her first film role was in Scooby-Doo 2: Monsters Unleashed at the age of 12 and from there went on to guest star in such films and televisions shows such as Supernatural as the NSA demon secretary Cecily, Stargate SG-1, Meghan in Zixx: Level Two, X-Men: The Last Stand, Phantom Racer and Girl in Progress. She is an accomplished voice over actor, having worked as a guest star as well as lead roles in several anime series, including Inuyasha, Hamtaro, Gundam SEED Destiny, and Elemental Gelade. She was a lead voice in Marvel’s animated feature Next Avengers: Heroes of Tomorrow, Marvel series Iron Man: Armored Adventures and Nintendo’s Dragalia Lost.
Known For
TV Shows (11)

Supernatural
2005
as Cecily

Stargate SG-1
1997
as Adria - Age 12

Psych
2006
as Heather

The Dead Zone
2002
as Little Julia

R. L. Stine's The Haunting Hour
2010
as Samantha / Lyria

Masters of Horror
2005
as Amy

Elemental Gelade
2005
as (voice)

Life Unexpected
2010
as Courtney

Tin Man
2007
as Ella-B Bedose

Knights of Bloodsteel
2009
as Talia

Zixx
2004
Movies (24)

Scooby-Doo 2: Monsters Unleashed
2004
as Buttercup Scout

Charlie St. Cloud
2010
as Girl in Toy Store

Fear Island
2009
as Regina

Beneath
2007
as Christy at 14 years old

Next Avengers: Heroes of Tomorrow
2008
as Torunn (voice)

Murder, She Baked: A Deadly Recipe
2016
as Carly Winters

Aurora Teagarden Mysteries: A Very Foul Play
2019
as Monica Swanson

Mystery 101: An Education in Murder
2020
as Ella Quincy

Vampire Holocaust
1997
as Leather

What Goes Up
2009
as Diminutive Girl

Girl in Progress
2012
as Valerie

The 12 Disasters of Christmas
2012
as Elizabeth

Garage Sale Mystery: The Deadly Room
2015
as Tina

Max Havoc: Ring of Fire
2006
as Valentine

Phantom Racer
2009
as Jesse

X-Men: The Last Stand
2006
as Minivan Daughter

MatchMaker Mysteries: A Fatal Romance
2020
as Caroline Higgins

Buying Back My Daughter
2023
as Lori

Gym Teacher: The Movie
2008
as Morgan

The Screwfly Solution
2006
as Amy

Zombie Bloodbath 3: Zombie Armageddon
2000
as Teacher Zombie

The Shivers
1998
as Skylar

Unforgotten
2017
as Nurse

Whispers in the Gloom
1998
as Alien Scientist
About Brenna O'Brien
Brenna O'Brien (born March 9, 1991) is a Canadian actress. She is best known for voicing Rin in the anime series Inuyasha. O'Brien was in the original pilot of The Middle in 2007 also starring Ricki Lake and Atticus Shaffer. This pilot was then re-created in 2009 with the current cast. O'Brien began her acting career at age 9, performing in local theatre productions and school plays. Her first film role was in Scooby-Doo 2: Monsters Unleashed at the age of 12 and from there went on to guest star in such films and televisions shows such as Supe… With 35 credits spanning from 1997 to 2023, Brenna O'Brien has appeared in 24 films and 11 TV shows.
Fans searching for Brenna O'Brien movies, Brenna O'Brien filmography, or the latest projects starring Brenna O'Brien can stream many of these titles on CineFlixo, free and in HD, with no subscription required.
Most Popular Brenna O'Brien Movies
- Scooby-Doo 2: Monsters Unleashed (2004) — as Buttercup Scout
- Charlie St. Cloud (2010) — as Girl in Toy Store
- Fear Island (2009) — as Regina
- Beneath (2007) — as Christy at 14 years old
- Next Avengers: Heroes of Tomorrow (2008) — as Torunn (voice)
Where to Watch Brenna O'Brien Films
Most Brenna O'Brien movies and series are available to stream on CineFlixo in full HD, completely free and without signup. Browse the complete filmography above to jump directly to any title. For more films and the latest web series featuring Brenna O'Brien, check our movies catalogue and browse page.