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Max Hamilton

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Max K. Hamilton


Portrayed By:
Martin Vaughan (older)
Matthew Scully (younger)
67-68 (Season 2)
First Appearance:
Last Appearance:
Unknown Family Members
Best Friends:
Love interest:
Gracie Watsford † (ex-girlfriend)

Max K. Hamilton was a good friend to Gracie Watsford, Louise Chatham, and Julia Dove in the 50s. He is played by Martin Vaughan in his old age and by Matthew Scully in his youth.


50 years ago, he did some research on Mako Island, which was similar to the work Lewis was doing. When Max first discovered the 3 original mermaids, he made 3 lockets shaped like water drops for each mermaid in order to embrace them of their transformations and started his research to find the cause of the girls transformation (much like Lewis was doing at the time he met Max).

He fell in love with Gracie and the two become a couple, however, Gracie eventually left him because she found it hard to live life as a mermaid and refused to listen to his ideas of the cause of her transformation.

Lewis first found Max after discovering about his research, on the Internet. After finding him, Max agreed to give his research to Lewis for him to find a cause for the girls transformation.


Gracie Watsford

"Not a girl. The girl." "She was so beautiful." "Gracie was the one for me."

-Max on what Gracie was to him

Gracie was the love of Max's life. When Gracie told Max she was a mermaid and arrived to Mako Island seeing Gracie, Louise, and Julia in mermaid form, he was surprised and was also okay keeping the secret for them. After, Max made lockets for all three of the mermaids and decided to wear them to remember what they were. Later, when Max was too obsessed with the mermaid research, Gracie got tired of it and threw her locket into the Moon Pool. Then, Gracie left him and Max was depressed in the present day.


  • Max made the lockets.
  • Max helped the original mermaids in the 50s, like Lewis in 2000s.
  • Max is a good fisherman.

Max's Gallery

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