1. Hey, remember Joanna from the movie “Love Actually”?
2. The girl that Sam is in love with?
3. She is the voice of Marceline on “Adventure Time.”
4. Yes, the girl who sings “All I Want for Christmas Is You.”
6. This girl…
10. (They even have a similar kissing technique?)
11. This girl.
13. (Her real name is Olivia Olson.)
UPDATE: Cole Sanchez, Adventure Time artist and writer has informed us that Olivia’s father, Martin Olson, voices Marceline’s father on the show as well!