Hoskins had never been formally trained, and was always proud that he had never attended a single acting lesson. Instead, on leaving school in 1959, he took temporary jobs, including as a merchant seaman in the Norwegian navy, a banana-picker on a kibbutz, camel-herder in Syria and porter at Covent Garden market.
In 1969, after an abortive attempt at going into accounting with his father, Hoskins claimed that he "fell sideways into acting by mistake". While waiting in a pub with a friend who wanted to audition for the Unity Theatre, Hoskins was mistaken for the next candidate. "I was too pissed to argue," he recalled, "so I got on stage and acted my socks off." He was offered the lead in The Feather Pluckers, and at the play's first night was signed up by an agent.
Hoskins spent the next 12 months in repertory, building up a reputation as an actor who was content to do anything.
In 1975 he was offered his first television role in On the Move. The programme established him as a "screen natural", and attracted a wide following and an almost cult status.
After his television appearance, offers of work on stage and screen doubled.
One critic described Hoskins as having "cornered the market in the cheeky Cockney chappie".
In 1980 The Long Good Friday, which was enormously successful in the US, established Hoskins as a global star.
In 1981 Hoskins starred in the National Theatre's production of Guys and Dolls. As in Pennies from Heaven, Hoskins' charismatic performance carried him over any deficiencies in his singing and dancing. Critics described Hoskins' "animal appeal" and "considerable panache".
They began to compare him with Edward G. Robinson and George Raft, and to call him "the Cockney Cagney".
On television he won critical approval for his portrayal of the Italian dictator in Mussolini: the Decline and Fall of Il Duce (1985); while his appearance in The Street in 2009 earned him the accolade of Best Actor at the International Emmy Awards of 2010. In 2012, after being diagnosed with Parkinson's disease, he retired from acting.
He is survived by his second wife and four children.