I disagree with the comment that Lewis is played as stupid. In the TV episode Morse was going to see the film Last Tango in Paris with Lewis, but the cinema was showing Snow White and the Seven Dwarfs. Much to Lewis's amusement. I think John Shrapnel does a decent portrayal of Morse probably, closer to Shaun Evans's Endeavour, who had his extreme and blunt moments.
Saturday Playhouse : The Silent World of Nicholas Quinn
Saturday 10th February 1996 at 14:30 on BBC Radio 4
Dramatised by Guy Meredith
Cast :
John Shrapnel as Inspector Morse
Robert Glenister as Sgt. Lewis
Richard Pasco as Dr Bartlett
Meg Davies as Monica Height
Stephen Critchlow as Donald Martin
David Timson as Phillip Ogleby
John Hartley as Chief Supt. Strange
Lyndham Gregory as Sgt. Dickson
Roger May as Nicholas Quinn
Alix Refaie as the Sheik
Denys Hawthorne as the Pathologist
Jane Whittenshaw as Mrs Evans John Hartley as Dr Roope
Patience Tomlinson as Elsie
Tracy Wiles as the Waitress
Zulema Dene as Mrs Bartlett
David Holt as Noakes
Ahmed Mustapha as the Arab voice
Alice Arnold as Ms Inga Nielssen
Caroline Strong as the Supermarket Manager
Geoffrey Whitehead as George Bland
The character of Lewis, played as "stupid" to extreme. Morse, enticing Lewis to view porn at the finale, seems out of character as we have known Morse in the past.