'Ti-Ti-Ti' presents a humorous plot, set in São Paulo, whose central theme is the professional, familial, and romantic rivalry between André Spina and Ariclenes Martins, or Ari, as he is known to those closest to him. The two were childhood friends and always fought a lot, engaging in tireless disputes over the same girlfriends.

Luis Gustavoas Ari (Ariclenes Martins) / Victor Valentim
Reginaldo Fariaas André Spina / Jacques Leclair
Marieta Severoas Suzana Azevedo
Cássio Gabus Mendesas Luti (Luiz Otávio Martins)
Malu Maderas Walkíria Spina (Wal)
Paulo Castellias Pedro Spina
Myrian Riosas Gabriela
Aracy Balabanianas Marta Morgado
Sandra Bréaas Jacqueline Mendonça / Madame Arruda
Nathália Timbergas Cecília Spina (Cecí)
Cassiano Gabus Mendes