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Mastermind was released on September 10, 1976 but we couldn't find it on any streaming service yet. Rights can change — try again later.
Get the app to be notifiedCast · Directed by Alex March
Zero Mostel
Inspector Hoku Ichihara
Keiko Kishi
Nikki Kono
Gawn Grainger
Nigel Crouchback
Bradford Dillman
Jabez Link
Jules Munshin
Israeli Agent #1
Frankie Sakai
Captain Yamada (as Furankî Sakai)
Sorrell Booke
Max Engstorm
Zaldy Zshornack
Officer Abe
Felix Silla
Schatzi
Phil Leeds
Israeli Agent #2
Kicki Taki
The Monk
Tetsu Nakamura
Mr. Hiruta (as Satoshi Nakamura)
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Mastermind — streaming FAQ
Which OTT platform streams Mastermind?
Mastermind isn't streaming anywhere in United States yet.
Is Mastermind on Netflix?
No, Mastermind is not on Netflix in United States as of August 2026.
Is Mastermind on Amazon Prime Video?
No, Mastermind isn't on Amazon Prime Video in United States right now.
Where can I watch Mastermind for free?
Mastermind isn't streaming in United States yet, so there's no way to watch it free at the moment.
What is the OTT release date for Mastermind?
Mastermind hasn't started streaming in United States yet. Based on the typical 6–8 week theatrical-to-streaming window, we estimate it will arrive around October 29, 1976. This is a prediction, not a confirmed date.