Miller served in position for 5 years

Christina Miller, the president of WarnerMedia's Cartoon Network , Adult Swim , and Boomerang subsidiaries, announced on Wednesday that she will step down from her position by the end of the year. Michael Ouweleen will serve as interim president, and Miller will be working with him until the end of the year. Miller served as president of the WarnerMedia subsidiaries for five years.

Prior to serving as president, Miller served as general manager of NBA Digital and senior vice president of Turner Sports Strategy/Marketing/ Programming. She joined Turner (later WarnerMedia) in 2005 as vice president of Cartoon Network Enterprises.

WarnerMedia announced a reorganization of its divisions in March that is bringing many of its subsidiaries and brands — including Otter Media (Ellation, Crunchyroll , Rooster Teeth , VRV ), Cartoon Network , Adult Swim , and Boomerang — into a single "Global Kids & Young Adults" unit.

Sources: Cartoon Brew (Amid Amidi), Deadline (Nellie Andreeva, Denise Petski)