Onthe Dukes of Hazard what was the name of Roscoe's dog??

His name was Flash, and he was a Bassett Hound.

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Here is some interesting info about the actual dog from http://www.tvacres.com/dogs_bassett_flash.htm ...

Basset hound on the rural adventure THE DUKES OF HAZZARD/CBS/1979-85. Flash belonged to Rosco P. Coltrane (James Best), the bumbling sheriff of Hazzard County. He bought the dog from an ad in the Police Gazette magazine and affectionately called her "Velvet Ears." Allegedly, a trained "attack dog" the sleepy-eyed Flash very rarely moved except when Roscoe fed her doggy treats or while being jostled around in the back of a patrol car during bumpy pursuits of the Duke Boys. Besides Roscoe, Flash was very friendly with Cooter, a local auto mechanic. However, Flash barked at Boss Hogg. On episode No. 77 "Dear Diary" Flash buried Rosco's diary (filled with details about Boss Hogg's illegal operations). When Flash died, Roscoe replaced her with another Basset hound -- an energetic puppy named Toodles (revealed on The Dukes of Hazzard Reunion). TRIVIA NOTE: Several dogs were used during the filming of the series including a life-sized stuffed replica of the sixty-pound canine called "Flush" used for dangerous situations. The primary dog was named Sandy originally found in a dog shelter. Alvin Mears, of Alvin Animal Rentals was the dog's trainer. James Best bought half interest in the dog for one dollar so he could use his association with the dog as a bargaining tool to get more money for Alvin and Flash. Best never took a penny for his part. Sandy (Flash) died at the age of fourteen. While she lived, Alvin and Best used wieners a bits of chicken to entice the dog into doing stunts or following commands.

Flash a Basset Hound

Flash.

His name was Flash!

bloodhound named flash

she is right it is Flash