Claim: Margaret Ann Loesch is an American television executive and producer who served as Executive Vice President of  Hanna-Barbera Productions  and President and Chief Executive Officer of  Marvel Productions.
Evidence: Margaret Ann Loesch is an American television executive and producer. In 1979 she moved to Hanna-Barbera Productions as Vice President for Children's Programming, moving up to Executive Vice President. In 1984, she joined Marvel Productions as President and Chief Executive Officer.