|Hair|| Brown (formerly)|
|Voiced by||Marÿke Hendrikse|
| Barbie in A Mermaid Tale|
- For other similarly named characters, see Hadley.
|“||Hadley is best friends with Fallon & me. She's a dreamer, imaginative & sweet. Hadley is so stoked I'm half mermaid!||”|
— Merliah describes Hadley in her scrapbook.
Hadley is a character in Barbie in A Mermaid Tale and Barbie in A Mermaid Tale 2. She is best friends with Fallon Casey, and the protagonist of the film, Merliah Summers. She is amazed and fascinated by mermaids and thinks that Merliah being a mermaid is beautiful.
Hadley is Hispanic. In the first movie, she has long brown hair with highlights. She has her hair in a ponytail that is tied with a purple scrunchie and wears two hairclips, and little earrings. In the second movie, she has strawberry blonde hair. Hadley's eyes are hazel. She wears a purple bikini top with matching shorts, and a pink mobile watch so she can communicate with Fallon and Merliah quickly.
Hadley is an imaginative girl, who is sometimes random. She isn't as athletic as Merliah or Fallon, but she loves to cheer them on and have group hugs. She is a daydreamer and her friends think she is funny, sweet and silly. She is excited when she finds out Merliah is half-mermaid and is friendly to Zuma, a talking dolphin.
- Hadley shares her name with Princess Hadley from Barbie in The 12 Dancing Princesses and Princess Hadley from Barbie: Princess Charm School.
- She looks very similar to Cora in Barbie: The Pearl Princess.
- "There is something deep and intense going on here."
- "Craziness doesn't explain your hair, but being half mermaid might!"
- "It's not made up! It's real mermaid fact; Liah's proof!"
- "This is real. Zuma is Liah's mermaid spirit guide, right?"
- "A mer-princess... Oh, that's so beautiful..."
|Barbie in A Mermaid Tale|
Quotes: "What makes you different just might be your greatest strength." | "It feels good to be a part of something bigger than yourself."
Characters: Alana Honi | Alistair | Ambassador Kattrin | Ambassador Mirabella | Ambassador Renata | Ambassador Selena | Break Summers | Dreamfish | Eris | Fallon Casey | Georgie Majors | Hadley | Kayla | Kylie Morgan | Lipstick Fish | Merliah Summers | Pufferazzi | Queen Calissa | Remo | Rip Summers | Snouts | Stargazers | Syrenka | Syrenka's Pet Fish | The Destinies | Xylie | Zuma
Objects: Merliah's Necklace