The Thirteenth Year poster
Where to stream

The Thirteenth Year

6.619991h 35mGMovieTV MovieAdventureComedy

A teen learns that his birth mother is a mermaid after he begins to grow fins and slimy scales on his thirteenth birthday.

DirectorDuwayne Dunham
WriterJenny Arata

Where to watch

Disney PlusDisney Plus
Availability shown for United States · rights vary by country

Cast · Directed by Duwayne Dunham

CSChez Starbuck
Chez Starbuck
Cody Griffin
JR
Justin Jon Ross
Jess Wheatley
CDCourtnee Draper
Courtnee Draper
Sam
BBBrent Briscoe
Brent Briscoe
Big John
TR
Tim Redwine
Sean Marshall
DCDave Coulier
Dave Coulier
Whit Griffin
LSLisa Stahl
Lisa Stahl
Sharon Griffin
KSKristen Stewart
Kristen Stewart
Girl in Fountain Line (uncredited)
BHBrian Haley
Brian Haley
Coach
KMKaren Maruyama
Karen Maruyama
Mrs. Nelson
RBRegan Burns
Regan Burns
Joe
JMJoel McKinnon Miller
Joel McKinnon Miller
Hal

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More from Justin Jon Ross · Co-star actor

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More from Duwayne Dunham · Director

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The Thirteenth Year — streaming FAQ

Which OTT platform streams The Thirteenth Year?

The Thirteenth Year is streaming on Disney Plus in United States, and available to rent or buy on Amazon Video and Google Play Movies. It's not currently on Netflix.

Is The Thirteenth Year on Netflix?

No, The Thirteenth Year is not on Netflix in United States as of October 2026. It's currently on Disney Plus.

Is The Thirteenth Year on Amazon Prime Video?

The Thirteenth Year isn't included with a Prime Video subscription in United States, but you can rent or buy it on Amazon Video.

Where can I watch The Thirteenth Year for free?

The Thirteenth Year is available on Disney Plus in United States, but you'll need an active subscription — there's no free option right now.