Pepe is a 12-year-old boy who lives with his grandmother, a witch-businesswoman. After discovering that he is adopted and that his parents are alive, he decides to go in search of them, but thus ends up attracting the attention of Edmundo, a biomechanical villain who needs Pepe to realize his enormous evil plan: use the boy's energy to conquer the immortality of its kind.
Charles Emmanuel
as Pepe / Roberto (Voice)
Nadia Carvalho
as Vó (Voice)
Iara Riça
as Marilu (Voice)
Oberdan Júnior
as Guto (Voice)
Luiz Sérgio
as Gastón / Mario (Voice)
Hélio Ribeiro
as Edmundo (Voice)
Garcia Júnior
as Cerebrão / Cacá (Voice)
Selma Lopes
as Mãedíbula (Voice)
Denis Nielsen
as Nanomecânico / Dr. Trunken Schtein (Voice)
Guilherme Briggs
as Corvó / Pai do Pepe (Voice)
Marlene Costa
as Mãe do Pepe (Voice)
Clécio Souto
as Diretor da Escola / Pai da Marilu (Voice)