Let's Kill Uncle_
"LOVABLE OR LETHAL? Are they bad seeds...or frightened innocents caught in a diabolical duel with death!"
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.
Starring
Nigel Green, Mary Badham, Pat Cardi
Updated Feb 16, 2026
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Year context
Let's Kill Uncle was released 60 years ago in 1966.
Overview
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...
Let's Kill Uncle is a Thriller, Horror film with a runtime of 1h 32m.
CAST (8)
Nigel Green
Major Kevin Harrison
Mary Badham
Chrissie
PC
Pat Cardi
Barnaby Harrison
RP
Robert Pickering
Travis
Linda Lawson
Justine
RS
Ref Sanchez
Ketchman
Nestor Paiva
Steward
William Castle
Russell Harrison (in car wreck) (uncredited)
DETAILS
Release
Status
Released
Runtime
92 min (1h 32m)
Country
Rating
5.4/10 (15 votes)
FREQUENTLY ASKED QUESTIONS
What is Let's Kill Uncle about?
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.
How long is Let's Kill Uncle?
Let's Kill Uncle has a runtime of 92 minutes (1h 32m).
Who stars in Let's Kill Uncle?
The cast of Let's Kill Uncle includes Nigel Green, Mary Badham, Pat Cardi, Robert Pickering, Linda Lawson.
What is the rating of Let's Kill Uncle?
Let's Kill Uncle has a rating of 5.4 out of 10 based on 15 votes on TMDB.
GENRES (2)
Thriller
Horror