Olivia Olson
Known for: Acting
Olivia Rose Olson (born May 21, 1992) is an American actress and singer-songwriter, mostly known for her voice roles as Vanessa Doofenshmirtz in Phineas and Ferb and Marceline the Vampire Queen in Adventure Time. She also played the character of Joanna in the 2003 film Love Actually and its 2017 short sequel Red Nose Day Actually.
Filmography
Series
Adventure Time
Marceline the Vampire Queen (voice)
2010
Series
Phineas and Ferb
Vennesa the Twi'Lek (voice)
2007
Series
Phineas and Ferb
Vanessa (voice)
2007
Series
Steven Universe
Pop Singer (voice)
2013
Series
Adventure Time: Fionna and Cake
Marceline / Celine (voice)
2023
Series
Adventure Time: Fionna and Cake
Marceline (voice)
2023
Series
We Baby Bears
Ursa (voice)
2022
Series
We Baby Bears
Pegasus / Employee / Goblin (voice)
2022
Series
We Baby Bears
Ursa / Young Cassi (voice)
2022
Series
We Baby Bears
Ursa / Voice on TV (voice)
2022
Series
We Baby Bears
Pegasus (voice)
2022
Series
Zoey 101
Girl #1
2005
Series
The Powerpuff Girls
Bliss (voice)
2016
Series
Fast & Furious Spy Racers
PizzaRave (voice)
2019
Series
Fast & Furious Spy Racers
Jun
2019
Series
Fast & Furious Spy Racers
Guard (voice)
2019
Series
Fast & Furious Spy Racers
Jun (voice)
2019
Series
Fast & Furious Spy Racers
PizzaRave / Jun (voice)
2019
Film
Love Actually
Joanna Anderson
2003
Series
Adventure Time: Distant Lands
Marceline the Vampire Queen / Additional Voices (voice)
2020
Series
The Tracy Morgan Show
Julia
2003
Series
Adventure Time: Side Quests
Marceline (voice)
2026
Film
Phineas and Ferb the Movie: Candace Against the Universe
Vanessa Doofenshmirtz (voice)
2020
Film
Phineas and Ferb: Star Wars
Vanessa the Twi'Lek (voice)
2014
Film
Red Nose Day Actually
Joanna
2017
Film
The Glorias
Susanne Steinem (uncredited)
2020
Film
The Laughter & Secrets of Love Actually: 20 Years Later – A Diane Sawyer Special
Self
2022
Film
Adventure Time: Fun with Finn and Jake
Marceline the Vampire Queen (voice)
2012
Film
Voice Over
Little Girl
2012
Film
Teller's Camp
Sadie O'Leary
2025
Film
Grapefruit
Grapefruit
2020