Acting · 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.
Love Actually
Joanna Anderson · 2003
Adventure Time
Marceline the Vampire Queen (voice) · 2010
Fast & Furious Spy Racers
Jun (voice) · 2019
Phineas and Ferb
Vanessa (voice) · 2007
Phineas and Ferb the Movie: Candace Against the Universe
Vanessa Doofenshmirtz (voice) · 2020
Adventure Time: Fionna and Cake
Marceline / Celine (voice) · 2023
Red Nose Day Actually
Joanna · 2017
We Baby Bears
Ursa (voice) · 2022
Phineas and Ferb: Star Wars
Vanessa the Twi'Lek (voice) · 2014
The Powerpuff Girls
Bliss (voice) · 2016
The Glorias
Susanne Steinem (uncredited) · 2020
Adventure Time: Side Quests
Marceline (voice) · 2026
Teller's Camp
Sadie O'Leary · 2025
The Laughter & Secrets of Love Actually: 20 Years Later – A Diane Sawyer Special
Self · 2022
Adventure Time: Fun with Finn and Jake
Marceline the Vampire Queen (voice) · 2012
Phineas and Ferb Summer Belongs to you !
Vanessa Doofenshmirtz · 2010
Voice Over
Little Girl · 2012
Grapefruit
Grapefruit · 2020
