EXCLUSIVE: HBO is shutting down its casting department, with its staff, led by 14-year HBO veteran, SVP Carrie Frazier, and VP Amy Jo Berman, exiting. HBO uses outside casting directors on all of its projects, with the in-house casting executives playing a supplemental role, mostly on the longform side. With the pay cable network’s movie and miniseries output decreasing over the past few years, HBO brass have made a decision to close that department.