Originally broadcast in 1967, Callan took the burgeoning world of spy drama, and brought a much darker tone to the genre. Having similar responsibilities to MI5, Callan used the most ruthless and lethal techniques to get the job done, each method meticulously filed by ‘The Section’, colour coding each lethal tactic.

The original television series, starring Edward Woodward in the title role, ran for four seasons between 1967 and 1972, with a cinema film released in 1974 and a tv comeback in 1981. And now, Callan returns on audio at Big Finish.

Adapted from series creator James Mitchell’s Sunday Express Short Stories by his son Peter Mitchell, these new adventures expand the themes explored in the television show, and star Ben Miles as Callan and Frank Skinner as Lonely.