The Thirteenth Year
- TV Movie
- Adventure
- Comedy
- Family
A teen learns that his birth mother is a mermaid after he begins to grow fins and slimy scales on his thirteenth birthday.
The Thirteenth Year is a 1999 Disney TV movie about a teenage boy who discovers his birth mother is a mermaid when he mysteriously begins developing fins and scales on his thirteenth birthday. This family-friendly adventure comedy blends coming-of-age drama with fantasy elements as the protagonist navigates an unexpected underwater heritage. The film is available to stream on Disney+.
When does The Thirteenth Year come out?
Where to watch
Streaming availability in United States
United States
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Digital purchase & rental in United States
Where to watch The Thirteenth Year by country
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BrazilTop cast
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Chez StarbuckCody Griffin- Justin Jon RossJess Wheatley
Courtnee DraperSam
Brent BriscoeBig John- Tim RedwineSean Marshall
Dave CoulierWhit Griffin
Lisa StahlSharon Griffin
Kristen StewartGirl in Fountain Line (uncredited)
Brian HaleyCoach
Karen MaruyamaMrs. Nelson
Regan BurnsJoe
Joel McKinnon MillerHal
Richard TannerDoctor Schwartz- Cameron CurtisTodd
- Craig HauerZach
Trailer
The Thirteenth Year Trailer (Promo on DC)
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The Thirteenth Year — frequently asked
When was The Thirteenth Year released?
The Thirteenth Year premiered on May 15, 1999 as a Disney Channel original TV movie.
Where can I watch The Thirteenth Year?
The film is available on Disney+, where Disney's full library of original movies and classic content is streamed.
What is The Thirteenth Year about?
The movie follows a teenage boy who learns his birth mother is a mermaid after he begins growing fins and scales on his thirteenth birthday, leading him to uncover his secret underwater heritage.
Is The Thirteenth Year appropriate for kids?
Yes, The Thirteenth Year is a family-friendly adventure comedy designed for all ages, blending fantasy and coming-of-age themes in a lighthearted way.
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