Olivia Rose Olson is an American actress, voice actress, and singer-songwriter, mostly known for voicing 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.
For Disney, she voiced Vanessa Doofenshmirtz on the Disney Channel animated series Phineas and Ferb. She has also sung multiple songs as Vanessa on Phineas and Ferb, including a catchy duet called "Busted" with co-star Ashley Tisdale. Additionally, she sung "I'm Lindana and I Wanna Have Fun!" as Linda Flynn and "Ready for the Bettys" as The Bettys.
Disney Roles
Gallery
Olivia Olson attending the 2011 San Diego Comic Con.
Olivia Olson speaks at the 2015 New York Comic Con.
Olivia Olson and Jeremy Shada attending the 2018 San Diego Comic Con.
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