Sam Register to Depart as Head of Warner Bros. Animation, Cartoon Network Studios and Hanna-Barbera Studios Europe (EXCLUSIVE)

Longtime Warner Bros. animation boss Sam Register is departing the company next week as his contract expires, Warner Bros. TV Group chair Channing Dungey announced in a memo to staffers this afternoon. Dungey said she and Register “mutually agreed not to renew his contract,” and that he will be…