Zack is survived by both parents. They are Patricia and Jonathan Estrin. Zack’s father also served as Executive VP of the American film institute. There isn’t any other information about them.
Zack began his career as a writer and producer on Charmed, Dawson Creek and Tru Calling, before serving as a co-executive producer of Prison Break.
He was set to write the script of an untimely unproduced spin-off, Prison Break: Cherry Hill, along with Prison Break’s executive producer Matt Olmstead, both of whom conceived the idea for the spin-off with fellow executive producer, Dawn Parouse.
In 2018, he served as showrunner on the Netflix show, Lost in Space.