Olivia Olson - wikipedia Olivia Olson This biography of a living person needs additional citations for verification. Please help by adding reliable sources. Contentious material about living persons that is unsourced or poorly sourced must be removed immediately, especially if potentially libelous or harmful. ( August 2011 ) Olivia Olson Olson at Magic City ComicCon Background information Birth name Olivia Rose Olson ( 1992 - 05 - 21 ) May 21, 1992 ( age 26 ) Los Angeles, California, U.S. Genres Acoustic R&B experimental Occupation ( s ) Actress singer - songwriter writer voice actress Instruments Vocals piano guitar bass Years active 2003 -- present Labels Independent 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. Olson is also a writer, contributing a section to the best - seller Adventure Time Encyclopedia and an upcoming book for Cartoon Network. Contents 1 Career 1.1 2003 : Love Actually 1.2 2008 - Present : Phineas and Ferb, Adventure Time and Beauty Is Chaos 1.3 2018 : Nowhere Land 2 Discography 2.1 Albums 2.2 Extended plays 2.3 Soundtrack albums 3 Filmography 3.1 Film 3.2 Television 3.3 Video games 4 References 5 External links Career Olson has appeared as a singer and actress on television shows and in live theatre, including Comedy Central Stage, the HBO Theater, The Fake Gallery, and the Disney Channel series Phineas and Ferb. Olson has also appeared on The Tracy Morgan Show and on The Ellen DeGeneres Show singing with DeGeneres, actor Jack Black and Broadway star Kristin Chenoweth. She is currently a cast member and singer on two animated series : Cartoon Network 's series Adventure Time, playing Marceline the Vampire Queen and on Disney 's animated series Phineas and Ferb playing Vanessa Doofenshmirtz, the sarcastic daughter of the evil Dr. Doofenshmirtz. In Adventure Time, her father, Martin Olson, plays Marceline 's dad Hunson Abadeer and Marceline sang a short song about him eating her French fries. She also sings a number of songs in Phineas and Ferb, including the duet `` Busted ! '' with Ashley Tisdale as well as popular solo songs, including `` I 'm Me, '' `` Not So Bad a Dad After All, '' `` I 'm Lindana and I Wanna Have Fun, '' `` Happy New Year '' and many others, including her song in the Phineas and Ferb Christmas Vacation special `` Got That Christmas Feeling. '' She has written songs for Phineas and Ferb and has written and recorded her own songs with renowned music producers Rick Nowels, Camara Kambon and Hollywood jazz great Rob Mullins. 2003 : Love Actually Olson rose to fame for her role as Joanna Anderson in the 2003 holiday film Love Actually, singing the song `` All I Want for Christmas Is You. '' Her singing was praised, with director Richard Curtis stating in the commentary in the music section of the Love Actually DVD that Olson 's singing was so perfect, they were afraid the audience would not believe that a ten - year - old could really sing the way she did and would assume she was lip - synching to Mariah Carey 's voice. They had to train her so her singing would sound more believable, and add the sounds of inhalations to the track. This led to guest spots on The Ellen Show, The Tracy Morgan Show and singing with Jack Black and Kristin Chenoweth. Olson also posted original songs on her YouTube account. 2008 - present : Phineas and Ferb, Adventure Time and Beauty is Chaos From 2008 to 2015, Olson voiced the recurring character Vanessa Doofenshmirtz in the Disney animated series Phineas and Ferb along with actor Thomas Sangster ( Ferb Fletcher ), who played Joanna 's love interest Sam in Love Actually. Her character is described as a punk goth, the sarcastic daughter of the not - so - evil Dr. Doofenshmirtz. She occasionally attempts to thwart her father 's evil schemes regarding her mother, always ending in failure. Although she is a sarcastic and spoiled teenager, she also has a kind heart and loves her parents. Olson 's father, Martin, was a head writer for the first season of the show, and one of the main songwriters at Disney throughout the series. In 2010, Olson got the role of Marceline the Vampire Queen on the animated Cartoon Network series Adventure Time. The series has been a commercial and popular success and her character is one of the most popular ones. Her character is similar to that of Vanessa on Phineas and Ferb, in which she has problems with her evil father, along with their dark personalities. Marceline is a fun - loving, mischief - seeking 1,005 - year - old vampire who looks like a teenager. She has an involved back story that is explored throughout the show. She first appeared as an antagonist, but later appears to be the main characters ' ( Finn and Jake 's ) friends. Like Phineas and Ferb, she sings often on the show, including the popular song `` The Fry Song, '' in which she sings about her father eating her fries and how sad she is, even though it is something much deeper. In the Adventure Time mini-series `` Stakes, '' Olson performs the popular song `` Everything Stays, '' which was revealed by Olson and Rebecca Sugar at the 2015 San Diego Comic - Con. Her character has become popular with fans and there is a wide range of Marceline products available, such as shirts, action figures, key chains, plushes, wallets, belts, necklaces and bracelets, etc. In 2015 Olivia & her father Martin Olson co-authored a novel for the series. `` Adventure Time 's : The Enchiridion & Marcy 's Super Secret Scrapbook ''. Olivia wrote her section in first person as her character Marceline. The book was illustrated by many talented artists such as : Tony Millionaire, Renee French, Celeste Moreno & Sean Tejaratchi. Olivia lends her voice to the fourth Powerpuff Girl `` Bliss '' on Cartoon Network 's reboot of `` The Powerpuff Girls ''. The newest member of the series has sparked a lot of talk surrounding the character 's ethnicity. Bliss is the older sister of the original three girls yet is drawn significantly darker than the other Powerpuff Girls. She frequently posts original music on her YouTube account Olivia Olson. On July 18, 2013, Olson released her debut EP Beauty Is Chaos. Olson has also performed the song `` Have n't You Noticed ( I 'm A Star ) '' which was featured on the September 17, 2015 episode of Steven Universe entitled `` Sadie 's Song. '' It was later featured in the Steven Universe mini-episode `` Gem Karaoke, '' released on October 3, 2016. She appears at Comic - Cons and pop conventions around the world with other cast members from her shows. 2018 : Nowhere Land Olson 's latest album ' Nowhere Land ' debuted June 22, 2018. She worked with K - pop producer 's Kairos Music Group & Producer / Singer / Songwriter John Defeo on the project. Discography Albums The Father - Daughter Album Of Unspeakable Beauty ( With Martin Olson ) ( 2013 ) Nowhere Land ( 2018 ) Extended plays Beauty Is Chaos ( 2013 ) Soundtrack albums Love Actually ( 2003 ) Phineas and Ferb ( 2009 ) Phineas and Ferb Holiday Favorites ( 2010 ) Phineas and Ferb the Movie : Across the 2nd Dimension ( 2011 ) Phineas and Ferb : Across the 1st and 2nd Dimensions ( 2011 ) Phineas and Ferb : Summer Belongs to You ( 2012 ) Phineas and Ferb - ulous : The Ultimate Album ( 2013 ) Phineas and Ferb : Rockin ' and Rollin ' ( 2013 ) The Music of Ooo ( 2016 ) Marceline The Vampire Queen -- Rock The Nightosphere ( 2015 ) Steven Universe, Vol. 1 ( Original Soundtrack ) ( 2017 ) Filmography Film Year Title Role Notes 2003 Love Actually Joanna Anderson 2011 Phineas and Ferb the Movie : Across the 2nd Dimension 2nd Dimension Vanessa Doofenshirmtz ( deleted scene ) Voice role Third time working with Thomas Sangster Television Year Show Role Appearances The Tracy Morgan Show Julia One episode, `` Career Day '' 2006 Zoey 101 Girl # 1 One episode, `` Broadcast Views '' 2008 -- 2015 Phineas and Ferb Vanessa Doofenshmirtz Voice role Second time working with Thomas Sangster 2010 -- 2018 Adventure Time Marceline the Vampire Queen Voice role 2017 Milo Murphy 's Law Additional Voices One episode, `` Battle of the Bands '' 2017 The Powerpuff Girls Blisstina Utonium Three episodes, `` Power of Four '', `` Never Been Blissed '' and `` In the Doghouse '' ( American Dub only ) 2017 Red Nose Day Actually Joanna Sequel to Love Actually Video games Year Title Role 2013 Adventure Time : Explore the Dungeon Because I Do n't Know ! Marceline the Vampire Queen 2015 Adventure Time : Finn & Jake Investigations Lego Dimensions References ^ Jump up to : Bierly, Mandi ( December 17, 2009 ). `` All ' Love Actually ' scene - stealer Olivia Olson wants for graduation is a record deal ''. Entertainment Weekly. Retrieved January 9, 2011. Jump up ^ Bradley, Bill ( October 27, 2014 ). `` 8 Facts You Did n't Know About ' Adventure Time, ' Even If You Were Born In Ooo ''. The Huffington Post. Retrieved February 3, 2015. Jump up ^ robsugar ( July 13, 2015 ), Everything Stays, retrieved March 15, 2017 Jump up ^ `` Beauty Is Chaos - EP by Olivia Olson on iTunes ''. iTunes. Retrieved February 3, 2015. Jump up ^ `` Have n't You Noticed ( I 'm A Star ). '' Steven Universe Wiki. N.p., 2016. Web. October 12, 2016. External links Wikimedia Commons has media related to Olivia Olson. Olivia Olson on IMDb Olivia Olson 's channel on YouTube Olivia Olson - Video Excerpts LCCN : no2012129155 MusicBrainz : a005866b - b423 - 4cec - a8f7 - 63543f35a65e VIAF : 267669134 Retrieved from `` https://en.wikipedia.org/w/index.php?title=Olivia_Olson&oldid=855761504 '' Categories : 1992 births Living people American film actresses American voice actresses Actresses from Los Angeles American female pop singers American female singer - songwriters American singer - songwriters American child singers American child actresses 21st - century American actresses Hidden categories : Use mdy dates from November 2017 BLP articles lacking sources from August 2011 All BLP articles lacking sources Articles with hCards Wikipedia articles with LCCN identifiers Wikipedia articles with MusicBrainz identifiers Wikipedia articles with VIAF identifiers Talk Contents About Wikipedia Asturianu Čeština Dansk Deutsch Español فارسی Français 한국어 Bahasa Indonesia Italiano Nederlands 日本 語 Polski Português Русский Suomi Svenska 9 more Edit links This page was last edited on 20 August 2018, at 17 : 15 ( UTC ). 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Question: who does the voice of vanessa on phineas and ferb
Answer: Olivia Rose Olson