- Country: UK, USA
- Genres: Action, Drama, Thriller
- Release: 1975-08-22
- Director: Don Sharp
- Writers: John Gay , Richard Johnson
- Language: English
- Stars: Rod Steiger (1925–2002) , Lee Remick , Richard Johnson , Trevor Howard (I) (1913–1988) , Peter Egan (I) , Eric Porter , Ian Hogg , Stanley Lebor , John Hallam , Patrick Stewart
- Runtime: 103 min
- Awards: N/A
- AKA: Хеннесси , Hennessy , Hennessy -hänsynslös hämnare (Sweden) , Le grand défi (France, French Republic) , Il giorno più lungo di Scotland Yard (Italy) , Hennessy hensynsløs hevner (Norway) , 怒りの日 (Japan) , Rauhantappajat (Finland) , To Kill the Queen (United States of America) , Jaque a la reina (Spain) , Codewort Hennessy , Hennessy (United Kingdom) , Bombemanden (Denmark) , Hennessy, o Militante (Portugal, Portuguese Republic) , O Dia Fatal (Brazil) , Το φοβερό κυνηγητό του Χέννεσσυ (Greece) , Hennessy - Verdens farligste mand (Denmark) , Hennessey (Hungary) , Κομμάντος εκτός νόμου (Greece) , Ein Mann namens Hennessy , Hennessy, Maailman vaarallisin mies (Finland) , Χέννεσσυ... 5 Νοεμβρίου (Greece)
- Plot: Hennessy is an Irishman who believes in peace, but who has had connections to the I.R.A. After his family is killed he plots revenge, setting out to assassinate Queen Elizabeth II.
- IMDB:tt0073103
Hennessy Cast · · · ALL
Don Sharp
Director
Rod Steiger
(1925–2002)
Niall Hennessy
Lee Remick
Kate Brooke
Richard Johnson
Insp. Hollis
Trevor Howard
(I)
(1913–1988)
Comdr. Rice
Peter Egan
(I)
Williams
Eric Porter
Tobin
Ian Hogg
Gerry
Stanley Lebor
Hawk
John Hallam
Boyle
Patrick Stewart
Tilney
David Collings
Covey
John Shrapnel
Tipaldi
Hugh Moxey
Stephen Burgess, MP
Margery Mason
Housekeeper
Paul Brennan
Maguire
Patsy Kensit
Angie Hennessy
Oliver Maguire
Mick
Elizabeth Romilly
Shop Assistant
Charles Kay
Westminster Guide
Diana Fairfax
Maureen Hennessy
Peter Copley
Home Secretary
Alan Barry
Sgt Duggan
Graham Ashley
Police Commissioner
Paul Gregory
Lieutenant
Christopher Blake
Young Soldier