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Brenna O'Brien

Acting

Born March 9, 1991 · 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.

Awards & recognition

  • Leo Award — Best Youth or Children's Program or Series · nominated

Filmography28 titles

Supernatural

2005as Cecily

Stargate SG-1

1997as Adria - Age 12

R.L. Stine's the Haunting Hour

2010as Lyria

Buying Back My Daughter

2023as Lori

Psych

2006as Heather

MatchMaker Mysteries: A Fatal Romance

2020as Caroline Higgins

Aurora Teagarden Mysteries: A Very Foul Play

2019as Monica Swanson

Life Unexpected

2010as Courtney

The Dead Zone

2002as Little Julia

Masters of Horror

2005as Amy

Charlie St. Cloud

2010as Girl in Toy Store

Gym Teacher: The Movie

2008as Morgan

Mystery 101: An Education in Murder

2020as Ella Quincy

Murder, She Baked: A Deadly Recipe

2016as Carly Winters

Elemental Gelade

2005as (voice)

Tin Man

2007as Ella-B Bedose

Garage Sale Mystery: The Deadly Room

2015as Tina

X-Men: The Last Stand

2006as Minivan Daughter

Scooby-Doo 2: Monsters Unleashed

2004as Buttercup Scout

Girl in Progress

2012as Valerie

Beneath

2006as Christy at 14 years old

Fear Island

2009as Regina

Perfect Child

2007as Older Girl

What Goes Up

2009as Diminutive Girl

Merlin's Apprentice

2006as Young Brianna

The 12 Disasters of Christmas

2012as Elizabeth

Phantom Racer

2009as Jesse

Max Havoc: Ring of Fire

2006as Valentine