Hey there Boo Boo! The live-action/CGI 'Yogi Bear' features the vocal talents of Dan Aykroyd as the voice of Jellystone Park's most famous troublemaker, while Justin Timberlake plays Yogi's faithful buddy and co-conspirator, Boo Boo. Together, they tirelessly scheme to separate Jellystone Park patrons from their lunches. Based on the classic 1960s Hanna-Barbera cartoon, the live-action cast includes Anna Faris as nature documentary filmmaker Rachel Johnson and Tom Cavanagh as Yogi's amiable nemesis Ranger Smith.