Movie

Let's Kill Uncle

“LOVABLE OR LETHAL? Are they bad seeds...or frightened innocents caught in a diabolical duel with death!”

★ 5.5(16)19661h 32m

Let's Kill Uncle isn't available to stream, rent or buy in Canada right now. Availability changes often, so check back soon. Availability checked 12 June 2026.

Where to watch Let's Kill Uncle

🇨🇦 Canada

No streaming, rental or purchase options are listed in Canada right now. Availability changes often — try switching your region in the header.

Good to know

Director: William Castle
Release date: 1966-11-18
Runtime: 1h 32m
Language: English
Status: Released
Country: United Kingdom
Studio: William Castle Productions

Let's Kill Uncle — trailer

About Let's Kill Uncle

Let's Kill Uncle is a 1966 movie in the Thriller and Horror genres, directed by William Castle, starring Nigel Green, Mary Badham and Pat Cardi. It has a runtime of 1 hour 32 minutes. It holds an average rating of 5.5/10 from 16 viewers. Below you can see where to watch Let's Kill Uncle in Canada — across streaming, rental and purchase options — along with the full cast, trailer and viewer reviews.

Synopsis

A 12-year-old orphan who has just inherited a fortune is trapped on an island with his uncle, a former British intelligence commander who intends to kill him. A young girl is the boy's only ally against the sarcastic uncle, who uses hypnotism, a pool of sharks, fire, and poisonous mushrooms as weapons.

Cast

Nigel Green

Major Kevin Harrison

Mary Badham

Chrissie

Pat Cardi

Barnaby Harrison

Robert Pickering

Travis

Linda Lawson

Justine

Ref Sanchez

Ketchman

Nestor Paiva

Steward

William Castle

Russell Harrison (in car wreck) (uncredited)

Themes & keywords

uncle

Frequently asked questions

Where can I watch Let's Kill Uncle in Canada?+

Let's Kill Uncle is not currently listed on any streaming, rental or purchase service in Canada. Availability changes often, so check back or switch your region.

Is Let's Kill Uncle on Netflix?+

Let's Kill Uncle is not on Netflix in Canada right now.

How long is Let's Kill Uncle?+

Let's Kill Uncle has a runtime of 1 hour 32 minutes (92 minutes).

Who stars in Let's Kill Uncle?+

Let's Kill Uncle stars Nigel Green, Mary Badham, Pat Cardi, Robert Pickering and Linda Lawson.

When did Let's Kill Uncle come out?+

Let's Kill Uncle is a 1966 movie directed by William Castle.

What genre is Let's Kill Uncle?+

Let's Kill Uncle is Thriller and Horror film.

Who directed Let's Kill Uncle?+

Let's Kill Uncle was directed by William Castle.