Tom Ruegger s journey in animation began at Hanna-Barbera Productions where he was mentored by legends William Hanna and Joseph Barbera. He joined Warner Bros. Animation in 1989 and worked as both an executive producer and chief creative executive. While there, he started a decade-long collaboration with Steven Spielberg that resulted in five enormously successful series. Ruegger continues to write for the animation industry and is an active member of both the Writers Guild and the Screen Cartoonists Guild.