Actor
Olivia Olson
Born 1992 · Los Angeles, California, USA
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.
Acting
Adventure Time
Marceline the Vampire Queen (voice) · 2010
Love Actually
Joanna Anderson · 2003
Steven Universe
Pop Singer (voice) · 2013
Zoey 101
Girl #1 · 2005
Phineas and Ferb
Vennesa the Twi'Lek (voice) · 2007
Fast & Furious Spy Racers
PizzaRave (voice) · 2019
Adventure Time: Distant Lands
Marceline the Vampire Queen / Additional Voices (voice) · 2020
Adventure Time: Fionna and Cake
Marceline / Celine (voice) · 2023
Phineas and Ferb the Movie: Candace Against the Universe
Vanessa Doofenshmirtz (voice) · 2020
We Baby Bears
Ursa (voice) · 2022
Red Nose Day Actually
Joanna · 2017
Phineas and Ferb: Star Wars
Vanessa the Twi'Lek (voice) · 2014
Phineas and Ferb: Summer Belongs to You!
Vanessa Doofenshmirtz (voice) · 2010
Phineas and Ferb: Last Day of Summer
Vanessa (voice) · 2015
The Glorias
Susanne Steinem (uncredited) · 2020
The Tracy Morgan Show
Julia · 2003
The Powerpuff Girls
Bliss (voice) · 2016
Phineas and Ferb: Night of the Living Pharmacists
Vanessa Doofenshmirtz (voice) · 2014
The Laughter & Secrets of Love Actually: 20 Years Later – A Diane Sawyer Special
Self · 2022
Adventure Time: Side Quests
Marceline (voice) · 2026
Voice Over
Little Girl · 2012
Adventure Time: Fun With Finn And Jake
Marceline the Vampire Queen (voice) · 2012
Grapefruit
Grapefruit · 2020