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Let's Kill Uncle

Let's Kill Uncle(1966)

3.5

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

1h 32m•Thriller, Horror

Let's Kill Uncle

Videos• 2 Videos

How ratings work →

USCCB/OSV RatingAdults & Adolescents

CFDb Critics—

CFDb Viewers—

TMDb Rating5.5/1016 votes

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Let's Kill Uncle

How ratings work →

USCCB/OSV RatingAdults & Adolescents

CFDb Critics—

CFDb Viewers—

TMDb Rating5.5/1016 votes

Rate this film

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.

Stars Nigel Green, Mary Badham, Pat Cardi

Thriller

Horror

Where to Watch

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Top Cast

Full cast & crew

Nigel Green

Nigel Green

Major Kevin Harrison

Mary Badham

Mary Badham

Chrissie

Pat Cardi

Barnaby Harrison

Robert Pickering

Travis

Linda Lawson

Linda Lawson

Justine

Ref Sanchez

Ketchman

Nestor Paiva

Nestor Paiva

Steward

William Castle

William Castle

Russell Harrison (in car wreck) (uncredited)

Technical Details

Release Date

November 18, 1966

Original Language

en

External Links

Videos

• 2 Videos

Let's Kill Uncle (1966) ORIGINAL TRAILER [HD 1080p]

Let's Kill Uncle (1966) ORIGINAL TRAILER [HD 1080p]

John Badham on LET'S KILL UNCLE

John Badham on LET'S KILL UNCLE

Photos

• 1 Images

Let's Kill Uncle still 1

Keywords

uncle

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Catholic Film Database

Discover films through the lens of faith. Curated for the Catholic community.

Explore

Catholic Films Film Catalog Discover Streaming Services Festivals Liturgical Calendar

Community

Forums Lists Catholic Critics News Discussion Guides

Industry

CFDb Pro Funding Campaigns Studios Distributors

Resources

About Patrons & Prayer How Ratings Work Contact Privacy Policy Terms of Service

Weekly Film Picks

Get liturgical film recommendations delivered to your inbox.

© 2026 Catholic Film Database. All rights reserved. Terms · Privacy

This product uses the TMDB API but is not endorsed or certified by TMDB. Movie titles, posters, synopses, cast information, and similar metadata are the property of their respective rights holders and are presented here for review, commentary, and educational purposes.

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Let's Kill Uncle (1966) | Catholic Film Database