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.
The Glorias
Phineas and Ferb: Star Wars
Red Nose Day Actually
Phineas and Ferb: Last Day of Summer
Adventure Time: Elements
Phineas and Ferb: Summer Belongs to You!
Phineas and Ferb the Movie: Candace Against the Universe
Grapefruit
Adventure Time: Stakes
Love Actually
Voice Over
The Laughter & Secrets of 'Love Actually': 20 Years Later
Adventure Time: Diamonds & Lemons
Phineas and Ferb: Night of the Living Pharmacists
Sow, Do You Like Them Apples
Diamonds and LemonsThe Meet Arnold: The Movie
Port by the Sea
The Powerpuff Girls: Power of Four
