Entertainment company Viacom has appointed Katherine Gill-Charest to the post of senior vice president and controller. She will report to James Barge, who recently was promoted to chief financial officer from the position of executive vice president, controller of tax and treasury. Both positions are effective Oct. 1.

Gill-Charest has been vice president and deputy controller of Viacom since June 2007. In her new role, she will have direct responsibility for the financial reporting, accounting and financial compliance activities of Viacom and its subsidiaries.