A Witness out of the Blue_
In this classic whodunit, a police detective must rely on the only witness - a parrot, to catch the killer of an armed robber.
Starring
Louis Koo, Louis Cheung, Jessica Hsuan
Updated Feb 16, 2026
WHERE TO WATCH
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DROPTHE_ GOSSIP
Year context
A Witness out of the Blue was released 7 years ago in 2019.
Overview
In this classic whodunit, a police detective must rely on the only witness - a parrot, to catch the killer of an armed robber.
A Witness out of the Blue is a Crime, Thriller, Mystery film with a runtime of 1h 44m.
CAST (20)
Louis Koo
Sean Wong
Louis Cheung
Larry Lam
Jessica Hsuan
Joy Ding
Cherry Ngan Cheuk-Ling
Charmaine
Philip Keung Ho-Man
Yip Sau Ching
Fiona Sit Hoi-Kei
Sandy Yeung
Patrick Tam Yiu-Man
Bull Yiu
Andy On Chi-Kit
Tony Ho
Ling Man-Lung
Redhead
Sam Lee
Clark Auyeung
Deep Ng Ho-Hong
Homer Tsui
Annie Liu Xin-You
Ms. Expert
Jacky Cai
Auyeung's girlfriend
Ng Siu-Hin
Handiwork
Aaron Chow
Food Delivery Guy
Evergreen Mak Cheung-Ching
Crab
Tsui Kwong-Lam
Uncle Monk
Soi Cheang
Tony Ho (voice)
Cecilia Chan Lai-Wan
Bull's mother
Deon Cheung Chung-Chi
Undercover
DETAILS
FREQUENTLY ASKED QUESTIONS
What is A Witness out of the Blue about?
In this classic whodunit, a police detective must rely on the only witness - a parrot, to catch the killer of an armed robber.
How long is A Witness out of the Blue?
A Witness out of the Blue has a runtime of 104 minutes (1h 44m).
Who stars in A Witness out of the Blue?
The cast of A Witness out of the Blue includes Louis Koo, Louis Cheung, Jessica Hsuan, Cherry Ngan Cheuk-Ling, Philip Keung Ho-Man.
What is the rating of A Witness out of the Blue?
A Witness out of the Blue has a rating of 6.6 out of 10 based on 39 votes on TMDB.
GENRES (3)
Crime
Thriller
Mystery