John Jardine played four roles on Coronation Street:
- Solicitor Mr Lewis in August 1977
- Weatherfield Gazette photogrpaher Tony Watkins in November 1980 and August 1982
- Barry Platt, the father of Martin Platt, appearing in September and October 1987 (the role was later played by Richard Conway upon the character's return in September 1991)
- Randolph Taylor who appeared intermittently during 1990 and 1992.
His other credits include A Bit of a Do, The League of Gentlemen and Last of the Summer Wine.