Derek Etchells played five similar but different parts on Coronation Street:
- A Policeman in the Lake District in October 1969
- A Policeman in April 1971
- P.C. 243 in March and June 1973
- PC Thompson in August of the same year
- P.C. Smith in February 1974.
He also appeared in The Dustbinmen, Last of the Summer Wine, The Liver Birds and Whatever Happened To The Likely Lads?.