Gretsch was born in St. Cloud, Minnesota and grew up in Albany, Minnesota, the son of Russ and Barb. He has a sister, Jane, and a brother, Steve. Gretsch was raised Catholic.In 1999 Gretsch married former actress Melanie Shatner, daughter of William Shatner, with whom he has two daughters, Kaya and Willow.
埃文·彼得斯、朱诺·坦普尔
克里斯托弗·洛伊德、乔·格拉什
克里斯汀·戴维斯、坦米·布兰查德
杜夫·龙格尔、奥图姆·瑞瑟
Michael Biehn、Tatum O'Neal
杰西卡·朗德斯、乔·格拉什
马特·达蒙、杰森·贝特曼