VANCOUVER – Thunderbird Entertainment has added to its senior ranks after promoting three at its Los Angeles office.Matthew Berkowitz has been named to the role of Chief Creative Officer of Thunderbird Entertainment and kids division Atomic Cartoons, while Kristin Cummings and Aaron Behl have been appointed to jointly serve as VP originals at Atomic Cartoons.As CCO, Berkowitz will oversee the development, production and acquisitions of intellectual properties (IP) across Thunderbird and Atomic, while Cummings and Behl will focus on leading both the kids and family portfolio at Atomic, as well as developing its fledgling adult animation slate. "Since joining our team, Matt...