Full name: Marlena "Marley" Clarabell O'Brien
Born: February 21, 2003 (age 15)
- Occupation: 10th grade student
- Height: 5'10
- Zodiac sign: Pisces
- Favorite colors: Purple, pink, blue, teal, green, yellow, and white
- Handedness: Right
- Belly button: Innie
- Ticklish level: 13
- Shoe size: 9
- Toe color: Blue
- She is a fan of Daya, the singer, and has the walls on her room lined with Daya posters and images of her.
- She has a tendency to get lost in thought, more than rarely but less than sometimes.
- She has an extreme fear of elevators, because she was stuck in one for 4 hours when she was 12.
- The particular day this happened was October 23, 2015, which was the same day the Harvey Beaks season 1 Halloween pairing.
- She likes Harvey Beaks, and watches the Halloween episode (and the season 2 Halloween special) every October due to missing the season 1 episode while she was stuck in the elevator.
- She hates candy corn. Thinks it's yucky.
- Her favorite ice cream flavor is strawberry.
- Her name is sometimes spelled "Marlie" on written papers with her name on them.
- Her closest friend is Sarah, who inspired her to become a flip flop collector too. So far she has only like 10 or so pairs but is sure to make it to 100 or more later.
- She has a peanut allergy.