Full name Brenda Sue Grettenberger Gender Female Date of birth 23 February 1967 Age 59 years old (as of 2026) Zodiac sign Pisces Place of birth Eaton Rapids, Michigan, United States Current residence Eaton Rapids, Michigan, United States Nationality American Ethnicity White Religion Christianity Sexuality Straight Weight 242 lbs (110 kgs) Hair colour Light brown Eye colour Green Education Michigan State University College of Veterinary Medicine Profession Senior staff veterinarian, self-DVM Brenda is a seasoned cast member of The Incredible Dr. Pol, a reality TV show about the life of veterinarians in rural Michigan. Dr. Brenda Grettenberger on The Incredible Dr.