Malcolm McDowell as Alex
Patrick Magee as Mr Alexander
Michael Bates as Chief Guard
Warren Clarke as Dim
John Clive as Stage Actor
Adrienne Corri as Mrs. Alexander
Carl Duering as Dr. Brodsky
Paul Farrell as Tramp
Clive Francis as Lodger
Michael Gover as Prison Governor
Miriam Karlin as Catlady
James Marcus as Georgie
Aubrey Morris as Deltoid
Godfrey Quigley as Prison Chaplain
Sheila Raynor as Mum
Madge Ryan as Dr. Branom
John Savident as Conspirator
Anthony Sharp as Minister
Philip Stone as Dad
Pauline Taylor as Psychiatrist
Margaret Tyzack as Conspirator
Steven Berkoff as Det. Const. Tom
Lindsay Campbell as Police Inspector
Michael Tarn as Pete
David Prowse as Julian
Barrie Cookson as Dr. Alcott, Ludovico Center check-in
Jan Adair as Handmaiden in Bible Fantasy
Gaye Brown as Sophisto
Peter Burton as Junior Minister - Minister Frederick's Aid
John J. Carney as Detective sergeant
Vivienne Chandler as Handmaiden in Bible Fantasy
Richard Connaught as Billyboy
Prudence Drage as Handmaiden in Bible fantasy
Carol Drinkwater as Nurse Feeley
Lee Fox as Desk Sergeant
Cheryl Grunwald as Victim of Billyboy's Gang
Gillian Hills as Sonietta
Craig Hunter as Doctor
Shirley Jaffe as Nurse
Virginia Wetherell as Stage Actress
Neil Wilson as Prison Check-in Officer
Katya Wyeth as Girl in Ascot Fantasy
Frankie Abbott as Rex - Police Landrover Driver
Jack Arrow as Mustachioed Ludovico Technician
Joe Bartlett as Smiley Prisoner Next to Kissy Faced Prisoner
Roy Beck as Prison Officer in Chapel
Robert Bruce as Milkbar Bouncer
Maurice Bush as Charlie - Security Guard Outside Alex's Ludovico Room
Steadman Clark as 3rd Milkbar Bouncer
George Coulouris as Professor
Jeremy Curry as Jesus Christ
David Dawkins as Humming Technician
Barbie Denham as Bar Customer
Joe Dunne as Gang Member
Andros Epaminondas as Bearded Man in Record Shop
Helen Ford as Old Lady at Duke of York
Norman Gay as BBC Producer
Dr. Gundry as Dr. Lidlock
Peter Hannon as 2nd Policeman at Duke of York
Aidan Harrington as Observer
Alan Harris as Prison Guard
Margaret Heald as Nurse Braindrain
Nicholas Hill as Biblio Oldie
Heinrich Himmler as Self
Adolf Hitler as Self
Fred Hugh as Biblio Oldie
Harry Hutchinson as Tramp Beating Up Alex
Alf Joint as Gang Member
Katharina Kubrick as Girl Passing Alex in Record Store
Viktor Lutze as Self
Olive Mercer as Old Lady at Duke of York
Lou Morgan as Prison Guard
Leslie Nye as Biblio Oldie
Glenys O'Brien as Brunette Girl
George O'Gorman as Record Bootik Clerk
Nat Pearn as Biblio Oldie
Chalmers Peddie as Tramp beating up Alex
Rex Rashley as Biblio Oldie
Fred Real as Prison Check-In
Pat Roach as Milkbar Bouncer
Henry Robert as Desk Policeman
Billy Russell as Professor Attacked by Alex & Droogs in Library
Winifred Sabine as Old Lady at Duke of York
Len Saunders as Tramp
Shane Shelton as Burbling Boy
George Spence as Tramp Beating Up Alex
Guy Standeven as Man with Flowers in Hospital
Peter Sturgeon as Inmate
Tom Sye as Biblio Oldie
Arthur Tatler as Convict Pianist
Robert van Kaphengst as Inmate
Alec Wallis as Conspirator D.B. Da Silva
Sister Watkins as Dr. Lidlock's Assistant
Music by the great Kevin MacLeod