He acted in many television programmes, including possibly his best-known role as Matt Headley in When the Boat Comes In, a popular 1970s series.
His film career includes appearances in Special Branch (1973), The First Great Train Robbery (1978), McVicar (1980), The Plague Dogs (1982; voice only), Slayground (1983), The Bounty (1984; as Thomas Huggan, ship's surgeon), Mata Hari (1985), Revolution (1985), Scandal (1989), Chaplin (1992) and Mike Bassett: England Manager (2001).
His TV appearances include: "The Horns of Nimon" episodes of Doctor Who (season 17) (1979–80).
In 1958, and prior to going to drama school, Terris was a trainee reporter on the Sunderland Echo, the town's evening paper.
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