# Olivia Olson
**Olivia Olson** (born 1992) is an American actress, singer-songwriter, and screenwriter known for voicing [Marceline the Vampire Queen](https://www.edgepedia.org/marceline-the-vampire-queen) on *Adventure Time* and Vanessa Doofenshmirtz on *Phineas and Ferb*, and for playing Joanna, the schoolgirl who sings "All I Want for Christmas Is You," in the 2003 film *Love Actually*.[1](https://www.simonandschuster.com/authors/Olivia-Olson/262850050) She was born in Los Angeles, California.[2](https://www.imdb.com/name/nm1470322/)
| Key fact | Detail |
|---|---|
| Born | 1992, Los Angeles, California[2](https://www.imdb.com/name/nm1470322/) |
| Breakout role | Joanna in *Love Actually* (2003), singing "All I Want for Christmas Is You" at the school concert; director Richard Curtis had her recording edited to sound more like a child singing[2](https://www.imdb.com/name/nm1470322/) |
| Signature voice role | Marceline the Vampire Queen on *Adventure Time* (2010 onward), including *Distant Lands* (2020) and *Fionna & Cake* (2023–2025)[3](https://www.tvinsider.com/people/olivia-olson/) • [2](https://www.imdb.com/name/nm1470322/) |
| Other main voice role | Vanessa Doofenshmirtz on *Phineas and Ferb* (2007 onward, 50 episodes per IMDb)[2](https://www.imdb.com/name/nm1470322/) |
| Music releases | Debut EP *Beauty Is Chaos* (2013); album *Nowhere Land* (2018), produced with K-pop producers Kairos Music Group[4](https://meetthevoiceactors.com/voice-actors/olivia-olson/) |
| Writing | Co-author of *Adventure Time: The Enchiridion and Marcy's Super-Secret Scrapbook* (2015) and author of the Boom! Studios graphic novel *Marcy and Simon*; series writer for the *Phineas and Ferb* revival from 2023[1](https://www.simonandschuster.com/authors/Olivia-Olson/262850050) • [4](https://meetthevoiceactors.com/voice-actors/olivia-olson/) |
## Love Actually
Olson's first prominent screen role came at about ten years old, as Joanna, the object of Sam's ([Thomas Brodie-Sangster](https://www.edgepedia.org/thomas-brodie-sangster)'s) affection in [Richard Curtis](https://www.edgepedia.org/richard-curtis)'s romantic comedy *Love Actually* (2003).[5](https://www.cosmopolitan.com/entertainment/movies/a8514432/sam-joanna-kiss-love-actually-olivia-olson-interview/) She performed all of her own singing in the film's Christmas concert scene, delivering "All I Want for Christmas Is You." According to IMDb trivia, her voice was so technically accomplished that writer and director Richard Curtis had it edited so it sounded more like a child singing.[2](https://www.imdb.com/name/nm1470322/)
She reprised the role in the 2017 short sequel *[Red Nose Day Actually](https://www.edgepedia.org/red-nose-day-actually)*, made for [Comic Relief](https://www.edgepedia.org/comic-relief)'s Red Nose Day telethon, in which she and Brodie-Sangster appeared as adults.[1](https://www.simonandschuster.com/authors/Olivia-Olson/262850050) • [6](https://time.com/4710834/love-actually-sequel-teaser/) She also appeared in the NBC sitcom *The Tracy Morgan Show* (2003–04) early in her career.[3](https://www.tvinsider.com/people/olivia-olson/)
## Marceline on Adventure Time
Marceline the Vampire Queen is the role Olson is most identified with. She joined [Cartoon Network](https://www.edgepedia.org/cartoon-network)'s *Adventure Time* in 2010 and voiced the thousand-year-old vampire rocker across the series, the 2020 *Distant Lands* specials, and the 2023–2025 spin-off *Fionna & Cake*, in which she also voiced the character Celine.[3](https://www.tvinsider.com/people/olivia-olson/) • [2](https://www.imdb.com/name/nm1470322/) Marceline, initially introduced as a sort of antagonist to Finn and Jake, became one of their closest friends, and her backstory, involving her father Hunson Abadeer, the Ice King, and [Princess Bubblegum](https://www.edgepedia.org/princess-bubblegum), was revealed gradually over the show's run, often through songs.[7](https://www.latimes.com/entertainment/herocomplex/la-et-hc-adventure-time-marceline-20190425-story.html)
Olson has said she learned the character's story as the scripts arrived rather than in advance, and that she had no idea how much depth the character had.[8](https://www.scifinow.co.uk/interviews/adventure-times-olivia-olson-on-marceline-stakes-and-songs/) • [7](https://www.latimes.com/entertainment/herocomplex/la-et-hc-adventure-time-marceline-20190425-story.html) She also sings Marceline's songs in the show.[9](https://www.themarysue.com/olivia-olson-talks-marceline/)
**The Bubblegum reveal.** For most of the show's run the creative team worked around the question of whether Marceline and Princess Bubblegum had been romantically involved. At a Barnes and Noble event before a crowded audience, Olson announced that series creator [Pendleton Ward](https://www.edgepedia.org/pendleton-ward) had told her during a recording session, "you know they dated, right?", and that when she asked whether they could say so on the show or in a book, Ward replied that in some countries where the show airs "that sort of thing is illegal," which was why it was not being put in the show.[10](https://ufdcimages.uflib.ufl.edu/UF/E0/05/74/59/00001/Cooley_K.pdf)
**Family connection.** Marceline's father Hunson Abadeer is voiced by Olson's real-life father, Martin Olson, a comedy writer who also wrote for cartoons including *Phineas and Ferb*.[8](https://www.scifinow.co.uk/interviews/adventure-times-olivia-olson-on-marceline-stakes-and-songs/) Martin Olson wrote *The Adventure Time Encyclopedia* in Hunson's voice, with Olson contributing notes in Marceline's voice; the two later co-authored *The Enchiridion and Marcy's Super-Secret Scrapbook*, which offers diary entries from Marceline's childhood.[8](https://www.scifinow.co.uk/interviews/adventure-times-olivia-olson-on-marceline-stakes-and-songs/) • [11](https://www.themarysue.com/olivia-olson-interview/)
## Phineas and Ferb and other voice work
On Disney's *Phineas and Ferb* (2007 onward) Olson voices Vanessa Doofenshmirtz, the daughter of the evil scientist Dr. Doofenshmirtz, a role she carried into the 2020 film *[Phineas and Ferb the Movie: Candace Against the Universe](https://www.edgepedia.org/phineas-and-ferb-the-movie-candace-against-the-universe)* and the revival series.[2](https://www.imdb.com/name/nm1470322/) • [3](https://www.tvinsider.com/people/olivia-olson/) The casting carries an in-joke: Ferb, who has a romantic interest in Vanessa, is voiced by Thomas Brodie-Sangster, who played Sam pursuing Joanna in *Love Actually*, so the two actors play would-be couples in both works.[12](https://as.com/meristation/series/recrean-mas-de-15-anos-despues-esta-cancion-de-phineas-y-ferb-y-el-resultado-es-espectacular-n/) From 2023 she added writing credits on the revival, with IMDb listing 14 episodes written or story-by between 2025 and 2026 alongside her continuing voice role.[1](https://www.simonandschuster.com/authors/Olivia-Olson/262850050) • [2](https://www.imdb.com/name/nm1470322/)
Her other voice credits include [Bliss](https://www.edgepedia.org/bliss-the-powerpuff-girls), the fourth Powerpuff Girl, in Cartoon Network's *Powerpuff Girls* reboot from 2016 to 2019; a guest role as a pop singer on *Steven Universe* (2013); characters in *Phineas and Ferb: Star Wars* ([Disney XD](https://www.edgepedia.org/disney-xd), 2013–14); and roles in *Fast & Furious: Spy Racers* (2019) and several *Adventure Time* games, including *Adventure Time: Hey Ice King! Why'd You Steal Our Garbage?!!* (2012).[4](https://meetthevoiceactors.com/voice-actors/olivia-olson/) • [3](https://www.tvinsider.com/people/olivia-olson/) In the game *Adventure Time: Finn & Jake Investigations* she also voiced Huntress Wizard.[13](https://ripedesign.com/app/webroot/files/fckeditor/file/tudoxigob-fejodesaxuvute-dekitilifezome-wadesoxudagi-rijutawifewopi.pdf)
## Music and writing
Olson has pursued an independent music career alongside voice acting. She released her debut EP, *Beauty Is Chaos*, in 2013 and the album *Nowhere Land* in 2018, the latter produced in collaboration with the K-pop producers Kairos Music Group; Apple Music also lists her singles "Sway," "Beyond the Sea," and "You (Grapefruit the Musical)" and her song "That Christmas Feeling" on *Phineas and Ferb Holiday Favorites* (2009).[4](https://meetthevoiceactors.com/voice-actors/olivia-olson/) • [14](https://snapshot.apple.com/us/person/6621223997) In a 2021 interview she described leaving an on-camera path after feeling judged on her appearance and finding that voice acting judged her only on her voice and talent.[15](https://newscenemagazine.com/2021/10/singer-actress-olivia-olson-on-emmy-nomination-phineas-and-ferb-and-new-music/)
As a writer she co-authored *Adventure Time: The Enchiridion and Marcy's Super-Secret Scrapbook* with her father in 2015, writing Marceline's sections in first person, authored the Boom! Studios graphic novel *Marcy and Simon*, and contributed to the *Adventure Time Encyclopedia* for Cartoon Network.[4](https://meetthevoiceactors.com/voice-actors/olivia-olson/) • [1](https://www.simonandschuster.com/authors/Olivia-Olson/262850050) She is also credited as a writer and composer on IMDb, including staff-writer credits on the *Phineas and Ferb* revival.[2](https://www.imdb.com/name/nm1470322/) New Scene Magazine reported in 2021 that she had an Emmy nomination.[15](https://newscenemagazine.com/2021/10/singer-actress-olivia-olson-on-emmy-nomination-phineas-and-ferb-and-new-music/)
## References
1. [Olivia Olson, Official Publisher Page, Simon & Schuster](https://www.simonandschuster.com/authors/Olivia-Olson/262850050)
2. [Olivia Olson (I), IMDb](https://www.imdb.com/name/nm1470322/)
3. [Olivia Olson, Actress, TV Insider](https://www.tvinsider.com/people/olivia-olson/)
4. [Olivia Olson Voice Actor, Meet The Voice Actors](https://meetthevoiceactors.com/voice-actors/olivia-olson/)
5. [Olivia Olson on Her 'Love Actually' Kiss With Thomas Brodie-Sangster, Cosmopolitan](https://www.cosmopolitan.com/entertainment/movies/a8514432/sam-joanna-kiss-love-actually-olivia-olson-interview/)
6. [Watch the New Teaser Trailer for the 'Love Actually' Sequel, Time](https://time.com/4710834/love-actually-sequel-teaser/)
7. ['Adventure Time': Rebecca Sugar and Olivia Olson discuss Marceline, Los Angeles Times](https://www.latimes.com/entertainment/herocomplex/la-et-hc-adventure-time-marceline-20190425-story.html)
8. [Adventure Time's Olivia Olson on Marceline, Stakes and songs, SciFiNow](https://www.scifinow.co.uk/interviews/adventure-times-olivia-olson-on-marceline-stakes-and-songs/)
9. [Interview: Olivia Olson Talks Raising the Stakes for Adventure Time's Marceline, The Mary Sue](https://www.themarysue.com/olivia-olson-talks-marceline/)
10. [Cooley, K., dissertation on Adventure Time and queer material, University of Florida](https://ufdcimages.uflib.ufl.edu/UF/E0/05/74/59/00001/Cooley_K.pdf)
11. [The Mary Sue Exclusive Interview: Olivia Olson, Voice of Marceline the Vampire Queen](https://www.themarysue.com/olivia-olson-interview/)
12. [Recrean más de 15 años después esta canción de 'Phineas y Ferb', MeriStation (AS)](https://as.com/meristation/series/recrean-mas-de-15-anos-despues-esta-cancion-de-phineas-y-ferb-y-el-resultado-es-espectacular-n/)
13. [Adventure Time characters characteristics (compiled reference)](https://ripedesign.com/app/webroot/files/fckeditor/file/tudoxigob-fejodesaxuvute-dekitilifezome-wadesoxudagi-rijutawifewopi.pdf)
14. [Olivia Olson, Movies, TV Shows, and Music, Apple Snapshot](https://snapshot.apple.com/us/person/6621223997)
15. [Singer, Actress Olivia Olson On Emmy Nomination, 'Phineas and Ferb', And New Music, New Scene Magazine](https://newscenemagazine.com/2021/10/singer-actress-olivia-olson-on-emmy-nomination-phineas-and-ferb-and-new-music/)
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*Topic: Encyclopedia › Arts and culture › Screen and stage › Film and television › Screen people and creators › Voice performers › American voice performers › Animation and cartoon voice actors › Contemporary animation voice actors*
*Initially written Sep 17, 2026 · Reviewed: Sep 17, 2026; Sep 19, 2026; Oct 25, 2026 · Edited: Sep 19, 2026; Oct 12, 2026; Oct 15, 2026; Oct 25, 2026 · Last review: Oct 25, 2026*
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