In this pair of adventures, Po tells the story of how masters Thundering Rhino, Storming Ox and Croc met and takes on Shifu's biggest challenge yet. Paul Scheer, Dustin Hoffman, Will Shadley, Angelina Jolie, Grace Rolek, Seth Rogen, Jack Black, Dennis Haysbert, David Cowgill, Jessica DiCicco, Tony Leondis, Randall Duk Kim, Jaycee Chan, David Cross Added on Netflix 2015-04-14.