'Oswaldo' follows the misadventures of a school-aged penguin who was adopted and raised by human parents and who must now face his biggest challenge -- surviving school… which is way harder than it sounds, especially when you are an excitable, … Joel Vieira, Melissa Garcia, Mabel Cezar, Carol Valença, Francisco Junior, Vagner Fagundes, Alfredo Rollo Added on HBO 2022-06-17.