Thunderally Bull & Miniature Bull Terriers
Quality & Temperament Proven Puppies Occasionally for Select Show & Pet Homes


Thunderally Bull Terriers
Carol Gray & Gord Williams
St. Catherines, Ontario, Canada

Carol Gray
Carol Gray







CH Tavyecho Solo Prestige


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THUNDERALLY is a small home based kennel that began with Great Danes over forty years ago. The Thunderally name was permanently registered to Carol Gray by the Canadian Kennel Club in 1978. Gord Williams bought his first Great Dane from Carol in 1979. Thunderally became associated with Bull Terriers in 1997 with the purchase of Ch Starman Thunderally Nora, after 32 years in Great Danes. As breeders in both Great Danes & Bull Terriers Carol Gray & Thunderally have always been known for exceptional temperament and championship quality. Thunderally has had many accomplishments in the show ring and the dogs on this site represent only the most recent success.

Carol & Gord are members of the following Clubs and are active supporters of Bull Terrier Rescue on an international basis. They stand actively opposed to any form of Breed Specific Legislation. Carol & Gord are founding members of the newly organized Miniature Bull Terrier Club of Ontario. Please visit for more information.

   -- The Canadian Kennel Club
   -- Miniature Bull Terrier Club of Ontario
   -- Canine Federation of Canada
   -- The UKC of America
   -- Bull Terrier Club of America
   -- The Bull Terrier Club (UK)
   -- Miniature Bull Terrier Club of America
   -- The Miniature Bull Terrier Club of the UK
   -- Great Dane Fanciers Association (Life)
   -- Seaway Kennel Club
   -- St. Catharines Kennel & Obedience Club
   -- Canadian Dog Judges Association
   -- Barn Hunt Association, LLC


Carol Gray is a licensed CKC, AKC & FCI Judge for the Bull Terrier and Miniature Bull Terrier Breeds as well as the entire Terrier Group. She is also licensed for the Hound Group and the Working Group. She has been approved by the Bull Terrier Club of America as a ROM Breeder Judge and can award ROM Points internationally at any level. Carol is recognized as an international Bull Terrier and Miniature Bull Terrier Breeder Judge and has judged Bull Terrier and Miniature Bull Terrier Specialty Shows in Canada, America, the UK,Netherlands, Ireland and Australia. Carol holds a permit to judge the Non Sporting Group in Canada. Her complete judging resume can be found on the Canadian Dog Judges Association member list. Carol is an active participant in the CKC judges education program.

Thunderally News

In 2023 Casper (MBISS AM CH, CGCH Thunderally's Mechevious Casper) was awarded Select Dog at the Westminster Kennel Club. Also In 2023 Thunderally's What Lola Wants, Lola Gets achieved her Canadian Ch becoming the third sister to become a Canadian champion.

In 2022 CASPER (MBISS, GCH Thunderally's Mischevious Casper continued his winning ways achieving his American Championship in ten just shows. STARR (RBIS CH Thunderally's Shining Starheld the Thunderally Tradition finishing Number One MBT in Canada for the year while her sister MOCHI (Ch Thunderally's Cracklin Rose finished Fourth. Great year for the puppies.

In 2021 CASPER (MBISS GCH Thunderally's Mischevious Casper) continued his winning ways to once again become the Number One MBT in Canada. In August Thunderally welcomed six puppies into the family.(Stanley, Larry, Lola, Mouchie, Starr and Panda. Proud parents were Mom Jersey and Dad Rizzo. The puppies are all placed in both existing and new additions to the Thundertally family. Exciting News for Thunderally in the 2022 show scene.

In 2020 the Thunderally Puppies got off to a great start until the the Covid 19 Pandemic struck the Dog Show World. Casper ( MBSS GR CH, CH Thunderally's Mischevious Casper) won three Specialties including the Alberta Terrier Classic in August, the Dorchester Regional MBTCC MBT Specialty in October and the Inaugural MBTCC MBT National He is currently ranked as the Number One MBT in Canada. Several of Caspers litter mates are Nationally ranked too.

In 2019 NORMAN (Ch.Thunderally's Stormin Norman CGC) sired two litters of Championship level puppies. One with Axelbelle in Ontario and one with Amarantine in Saskatchewan. These puppies began their careers at the 2019 MBTCO MBT Aurora Specialty JERSEY (Thunderally's I'm So Pretty) was Best of Winners for first CKC Points. CASPER (Thunderally's Mischievous Casper) was Best Baby Puppy.

In 2018 ELI ( RBIS, MBISS,MBPIS, GCH THUNDERALLY'S PUTIN ON THE RITZ) continued on his winning ways in limited showing with several Group placements and achieving Reserve Best In Show at the St Catharines Kennel Club in August. Norman (CH THUNDERALLY'S STORMIN NORMAN, RATI, CGC) continues to work on his Barn Hunt Trials.



Irish and the boys







Thunderally MBT
Carol Gray & Gord Williams
St. Catherines, Ontario, Canada

Gord Williams
Gord Williams

Wales 2012

Netherlands 2014

Australia 2015

Ireland 2016

Hawaii 2020

2010 Don Cherry Trophy

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