Olivia Olson
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.
Known for
Acting23
tvAdventure Time: Side Quests
2026
Marceline (voice)
tvAdventure Time: Fionna and Cake
2023
Marceline / Celine (voice) / Marceline (voice)
tvWe Baby Bears
2022
Ursa (voice) / Pegasus / Employee / Goblin (voice) / Ursa / Young Cassi (voice) / Ursa / Voice on TV (voice) / Pegasus (voice)
movieThe Glorias
2020
Susanne Steinem (uncredited)
movieGrapefruit
2020
Grapefruit
tvAdventure Time: Distant Lands
2020
Marceline the Vampire Queen / Additional Voices (voice)
moviePhineas and Ferb the Movie: Candace Against the Universe
2020
Vanessa Doofenshmirtz (voice)
tvFast & Furious Spy Racers
2019
PizzaRave (voice) / Jun / Guard (voice) / Jun (voice) / PizzaRave / Jun (voice)
tvThe Powerpuff Girls
2016
Bliss (voice)
moviePhineas and Ferb: Last Day of Summer
2015
Vanessa (voice)
moviePhineas and Ferb: Night of the Living Pharmacists
2014
Vanessa Doofenshmirtz (voice)
moviePhineas and Ferb: Star Wars
2014
Vanessa the Twi'Lek (voice)
tvSteven Universe
2013
Pop Singer (voice)
movieAdventure Time: Fun With Finn And Jake
2012
Marceline the Vampire Queen (voice)
movieVoice Over
2012
Little Girl
moviePhineas and Ferb: Summer Belongs to You!
2010
Vanessa Doofenshmirtz (voice)
tvAdventure Time
2010
Marceline the Vampire Queen (voice)
tvPhineas and Ferb
2007
Vennesa the Twi'Lek (voice) / Vanessa (voice)
tvZoey 101
2005
Girl #1
movieLove Actually
2003
Joanna Anderson
Writing1
tvPhineas and Ferb
2007
Writer, Story