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.
Voice Over
Little Girl
Phineas and Ferb: Night of the Living Pharmacists
Vanessa Doofenshmirtz (voice)
The Laughter & Secrets of Love Actually: 20 Years Later – A Diane Sawyer Special
Self
Love Actually
Joanna Anderson
Red Nose Day Actually
Joanna
Phineas and Ferb: Last Day of Summer
Vanessa (voice)
Phineas and Ferb: Star Wars
Vanessa the Twi'Lek (voice)
Phineas and Ferb the Movie: Candace Against the Universe
Vanessa Doofenshmirtz (voice)
Phineas and Ferb: Summer Belongs to You!
Vanessa Doofenshmirtz (voice)
Grapefruit
Grapefruit
The Glorias
Susanne Steinem (uncredited)
Adventure Time - Come Along With Me
Marceline (voice)