Person

Olivia Olson

Acting · Born 1992-05-21 · 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.

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  Adventure Time

  Marceline the Vampire Queen (voice)

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  Phineas and Ferb

  Vennesa the Twi'Lek (voice)

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  Steven Universe

  Pop Singer (voice)

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  Adventure Time: Fionna and Cake

  Marceline / Celine (voice)

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  Adventure Time: Side Quests

  Marceline (voice)

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  We Baby Bears

  Ursa (voice)

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  Zoey 101

  Girl #1

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  The Powerpuff Girls

  Bliss (voice)

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  Fast & Furious Spy Racers

  PizzaRave (voice)

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  Love Actually

  Joanna Anderson

• 2026Adventure Time: Side QuestsMarceline (voice)
• 2023Adventure Time: Fionna and CakeMarceline / Celine (voice)
• 2022The Laughter & Secrets of Love Actually: 20 Years Later – A Diane Sawyer SpecialSelf
• 2022We Baby BearsUrsa (voice)
• 2020The GloriasSusanne Steinem (uncredited)
• 2020GrapefruitGrapefruit
• 2020Adventure Time: Distant LandsMarceline the Vampire Queen / Additional Voices (voice)
• 2020Phineas and Ferb the Movie: Candace Against the UniverseVanessa Doofenshmirtz (voice)
• 2019Fast & Furious Spy RacersPizzaRave (voice)
• 2017Red Nose Day ActuallyJoanna
• 2016The Powerpuff GirlsBliss (voice)
• 2015Phineas and Ferb: Last Day of SummerVanessa (voice)
• 2014Phineas and Ferb: Night of the Living PharmacistsVanessa Doofenshmirtz (voice)
• 2014Phineas and Ferb: Star WarsVanessa the Twi'Lek (voice)
• 2013Steven UniversePop Singer (voice)
• 2012Adventure Time: Fun With Finn And JakeMarceline the Vampire Queen (voice)
• 2012Voice OverLittle Girl
• 2010Phineas and Ferb: Summer Belongs to You!Vanessa Doofenshmirtz (voice)
• 2010Adventure TimeMarceline the Vampire Queen (voice)
• 2007Phineas and FerbVennesa the Twi'Lek (voice)
• 2005Zoey 101Girl #1
• 2003The Tracy Morgan ShowJulia
• 2003Love ActuallyJoanna Anderson