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
Love Actually
(2003)
Joanna Anderson
Phineas and Ferb The Movie: Candace Against the Universe
(2020)
Vanessa Doofenshmirtz (voice)
Phineas and Ferb: Star Wars
(2014)
Vanessa the Twi'Lek (voice)
Red Nose Day Actually
(2017)
Joanna
The Glorias
(2020)
Susanne Steinem (uncredited)
Full Filmography
Acting
Love Actually
(2003)
Joanna Anderson
Phineas and Ferb: Summer Belongs to You!
(2010)
Vanessa Doofenshmirtz (voice)
Voice Over
(2012)
Little Girl
Phineas and Ferb: Star Wars
(2014)
Vanessa the Twi'Lek (voice)
Phineas and Ferb: Night of the Living Pharmacists
(2014)
Vanessa Doofenshmirtz (voice)
Phineas and Ferb: Last Day of Summer
(2015)
Vanessa (voice)
Red Nose Day Actually
(2017)
Joanna
Diamonds and Lemons
(2018)
Marceline
Phineas and Ferb The Movie: Candace Against the Universe
(2020)
Vanessa Doofenshmirtz (voice)
Grapefruit
(2020)
Grapefruit
The Glorias
(2020)
Susanne Steinem (uncredited)
The Laughter & Secrets of 'Love Actually': 20 Years Later
(2022)
Self
Sound