Mick Travis trilogy

Michael Arnold "Mick" Travis is a character played by Malcolm McDowell in three films directed by British film director Lindsay Anderson and written by David Sherwin. Travis features not so much as a single character with a character arc, but as an everyman character whose role changes according to the needs of the storyteller.

In 1968's if...., his first appearance (and McDowell's film debut), Travis first appears as a disaffected public school boy whose anti-establishment attitude and experiences lead to armed insurrection at a private school. The film was made at Cheltenham College, Lindsay Anderson's old school, and many of the scenes drew heavily on his experience in the Officers Training Corps at Cheltenham, which he had joined in May 1937. It also draws heavily upon Tonbridge School, where the two screenwriters both went, and several characters, including the child-abusing chaplain, are based on real people who taught at Tonbridge.

In O Lucky Man!, cowritten by Sherwin and McDowell, Travis becomes a picaresque character, often compared to Voltaire's ingénu character Candide, in a satirical drama that starts with Travis's first job as a mobile coffee salesman and, after many adventures involving arms-sale scandals, experiments in human-animal genetics by the mad scientist Doctor Millar (played with relish by Graham Crowden), and a sojourn with the musician Alan Price, ends in his rebirth as a film star, thanks to a slap by a film director played in a cameo by Anderson—the scene was a depiction of McDowell's first audition in which McDowell was slapped (according to script, which he had not read) by Christine Noonan, who played 'the girl' in if.... and briefly appeared (in two roles) in O Lucky Man!

...
Wikipedia