Beauregard "Zack" Isaac Theo Brady was the second son and child of supercouple Hope and Bo Brady, born June 9, 2000. For the longest time, Zack was known as Isaac Theo Carver, the long-awaited and much-beloved son of Abe and Lexie Carver. For years the two had tried unsuccessfully to have a child of their own with no success, until Lexie's father, Stefano, got them in touch with Marlo, a young pregnant woman. Abe and Lexie adopted the baby that Marlo has given birth to, unaware that Stefano had switched Marlo and Hope's sons.