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![](https://image.tmdb.org/t/p/w92/tHEkr21iYLUgoNaQQKPE4xtmAmg.jpg)
Norman Bowler
Det. Chief Insp. Hawkins (26 eps)
![](https://image.tmdb.org/t/p/w92/bWPxwFuJE86uudIWizruO6Rb46P.jpg)
Frank Windsor
Det. Chief Supt. Watt (26 eps)
![](https://image.tmdb.org/t/p/w92/kH2TiDsc9BPIIsYmakXJe3ZUkOr.jpg)
David Lloyd Meredith
Det. Sgt. Evans (26 eps)
![](https://image.tmdb.org/t/p/w92/jbues6vQgKbCOvLdGuktrkNp0iW.jpg)
Terrence Hardiman
Insp. Armstrong (7 eps)
![](https://image.tmdb.org/t/p/w92/ab1HO2yR8dY4tDNcqmR761jQtAR.jpg)
Stratford Johns
Det. Chief Supt. Barlow (6 eps)
![](https://image.tmdb.org/t/p/w92/gjLyrCyTw3Hvjv5MStc8QoWRgW4.jpg)
Terence Rigby
PC Snow (5 eps)
![](https://image.tmdb.org/t/p/w92/3pz9faSRNXyXB74t9VaJlw8IR4Q.jpg)
Walter Gotell
Chief Constable Cullen (4 eps)
![](https://image.tmdb.org/t/p/w92/mZTlKMtkMsMiO1Vd0A9ZCHJYevX.jpg)
Desmond Llewelyn
Somers (1 eps)
![](https://image.tmdb.org/t/p/w92/g9njuopM7qIgALSxh2XT8IKzvWU.jpg)
Jean Boht
Mrs. Lacey (1 eps)
![](https://image.tmdb.org/t/p/w92/q2c8qe3gkGQ8PtxJL17H2yalV8W.jpg)
Reginald Marsh
Chief Supt. Ted Leach (1 eps)
![](https://image.tmdb.org/t/p/w92/aqfqXEwhP5VJPgebbyJvyAW3urw.jpg)
Peter Sallis
Lodge (1 eps)