Productions of the Max Frisch play The Fire Raisers and John Osborne's Luther featured in his effort to move the theatre's repertoire beyond its standard fare.
[1][2] Hepton made his television debut as Sir Thomas More in Robert Bolt’s A Man for All Seasons in a live broadcast in 1957.
He was cast as the Kommandant in Colditz (1972–74) and later appeared for the same production team as Albert Foiret in three series of Secret Army (1977–79).
In 1996 he appeared in the TV adaptation of Jane Austen's Emma, as the title character's hypochondriac father, Mr. Woodhouse.
He was also in TV's The Charmer - 1987 where he played Donald Stimpson[2] On radio, Hepton played the role of Albert, in Stranger in the Home by Alan Dapre, also the role of The Old Man in the Corner, the amateur, and mostly sedentary, sleuth in the BBC Radio 4 dramatic adaption called The Teahouse Detective (1998–2000) by Baroness Orczy.
He made a brief appearance as Thorpey, a gangster, in the classic British crime thriller Get Carter (1971), and another small role, as Milton Goldsmith, in Voyage of the Damned (1976).