Warning Sign poster
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Warning Sign

6.019851h 39mRMovieDramaScience FictionThriller

An accident occurs in an ultra-secret government biological weapons laboratory spreading a sinister bacteria.

DirectorHal Barwood
WritersMatthew Robbins·Hal Barwood
ProducersJim Bloom·Hal Barwood

Where to watch

Availability shown for United States · rights vary by country

Cast · Directed by Hal Barwood

SWSam Waterston
Sam Waterston
Cal Morse
KQKathleen Quinlan
Kathleen Quinlan
Joanie Morse
YKYaphet Kotto
Yaphet Kotto
Major Connolly
JDJeffrey DeMunn
Jeffrey DeMunn
Dr. Dan Fairchild
RDRichard Dysart
Richard Dysart
Dr. Nielsen
GBG.W. Bailey
G.W. Bailey
Tom Schmidt
JHJerry Hardin
Jerry Hardin
Vic Flint
RRRick Rossovich
Rick Rossovich
Bob
CC
Cynthia Carle
Dana
SPScott Paulin
Scott Paulin
Captain Walston
KRKavi Raz
Kavi Raz
Dr. Ramesh Kapoor
KSKeith Szarabajka
Keith Szarabajka
Tippett

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More from Kathleen Quinlan · Co-star actress

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Warning Sign — streaming FAQ

Which OTT platform streams Warning Sign?

Warning Sign isn't on any subscription service in United States right now, but you can rent or buy it on Amazon Video, Apple TV Store and Google Play Movies. It's not on Netflix.

Is Warning Sign on Netflix?

No, Warning Sign is not on Netflix in United States as of September 2026. You can rent or buy it on Amazon Video and Apple TV Store.

Is Warning Sign on Amazon Prime Video?

Warning Sign 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 Warning Sign for free?

Warning Sign isn't available free in United States; you can only rent or buy it on Amazon Video and Apple TV Store.