Daffy Duck is a detective who is hunting for the Shropshire Slasher.
| Actor | Role |
|---|---|
 Mel BlancDorlock Homes / Watkins / Shropshire Slasher / Telegram Boy / Alfie / Bartender (voice) | Dorlock Homes / Watkins / Shropshire Slasher / Telegram Boy / Alfie / Bartender (voice) |
 June ForayShropshire Slasher's Mother (voice) (uncredited) | Shropshire Slasher's Mother (voice) (uncredited) |